🍕 Crispy Pizza with Cereal and Legume Flour
Three formulations for crispy pizza with rice flour, re-milled semolina, whole rye and legume flour. In-depth research on ingredients and techniques to maximise crispiness.
🍕 Crispy pizza with cereal and legume flour
Three formulations for crispy pizza based on a multi-flour blend (re-milled semolina, strong type 1 flour, rice flour, whole rye, legume flour). Each recipe is optimised for a specific style: crispy outside with a soft, open crumb inside, or thin and uniformly crispy like a cracker.
- Recipe A: crispy outside, soft inside (tray/peel style)
- Recipe B: thin and uniformly crispy (Roman scrocchiarella style)
- Recipe C: versatile compromise
- Why rice flour makes pizza crispy
- Hydration and baking technique
- Salt in the dough: what changes and how much to use
- Fats, malt and other factors
- Why legume flours in the dough
- Sources
Recipe A: crispy outside, soft inside (tray/peel style)
High hydration, open crumb structure, crispy golden outer crust. Ideal for tray pizza or peel-baked pizza.
Ingredients
| Ingredient | % | 1 kg flour | 1.3 kg flour |
|---|---|---|---|
| 🥣 Autolyse (mix and rest 20–30 min) | |||
| Strong type 1 flour (W 320+) | 40% | 400 g | 520 g |
| Re-milled semolina | 35% | 350 g | 455 g |
| Rice flour (long grain, NOT glutinous) | 12% | 120 g | 156 g |
| Whole rye | 8% | 80 g | 104 g |
| Legume flour (chickpea/lentils/peas) | 5% | 50 g | 65 g |
| Water | 73% | 730 g | 949 g |
| ✊ Mixing (add after autolyse) | |||
| Fresh brewer's yeast | 0.2% | 2 g | 2.6 g |
| Fine sea salt | 1.3% | 13 g | 17 g |
| Extra-virgin olive oil (added last) | 3% | 30 g | 39 g |
| Diastatic malt powder (optional) | 0.5% | 5 g | 6.5 g |
| Total flour | 100% | 1 000 g | 1 300 g |
Method
- Mix all flours with water (hold back 10% for bassinage). Cover and rest 20–30 minutes (autolyse).
- Add crumbled yeast and knead 3–4 minutes at low speed.
- Add salt and malt. Knead 4–5 minutes until partial gluten development.
- Drizzle in the olive oil. Continue kneading until fully absorbed (2–3 min).
- If the dough is still stiff, add the reserved water in small doses (bassinage).
- Transfer to an oiled container, fold at 30 and 60 minutes, then cover.
- Refrigerate 24–48 hours.
- Remove 2–4 hours before use. Gently spread into a well-oiled tray (do not deflate the air pockets).
- Preheat oven to maximum (250–275°C) with stone or steel inside for at least 60 minutes.
- Par-bake: bake with only a light layer of sauce for 5 minutes.
- Add toppings and finish baking 7–8 minutes with a final grill burst to brown the surface.
Recipe B: thin and uniformly crispy (Roman scrocchiarella style)
Ultra-thin (2–3 mm), uniform cracker-like crispiness. Rolled out with a rolling pin.
Ingredients
| Ingredient | % | 1 kg flour | 1.3 kg flour |
|---|---|---|---|
| 🥣 Autolyse (mix and rest 20–30 min) | |||
| Re-milled semolina | 40% | 400 g | 520 g |
| Strong type 1 flour (W 280–320) | 30% | 300 g | 390 g |
| Rice flour (long grain) | 15% | 150 g | 195 g |
| Whole rye | 10% | 100 g | 130 g |
| Legume flour (chickpea/lentils/peas) | 5% | 50 g | 65 g |
| Water | 57% | 570 g | 741 g |
| ✊ Mixing (add after autolyse) | |||
| Fresh brewer's yeast | 0.3% | 3 g | 3.9 g |
| Fine sea salt | 1.3% | 13 g | 17 g |
| Extra-virgin olive oil (added last) | 3.5% | 35 g | 45.5 g |
| Diastatic malt powder | 0.5% | 5 g | 6.5 g |
| Total flour | 100% | 1 000 g | 1 300 g |
Method
- Mix all flours with water. Cover and rest 20–30 minutes (autolyse).
- Add crumbled yeast and knead 3–4 minutes.
- Add salt and malt. Knead 4–5 minutes.
- Drizzle in the olive oil and complete kneading (2–3 min).
- Portion immediately into 180–200 g balls.
- Refrigerate 16–24 hours.
- Remove 1–2 hours before use.
- Roll out to 2–3 mm with a rolling pin, dusting the surface with rice flour (burns less than semolina).
- Preheat oven to maximum with stone/steel inside for at least 60 minutes.
- Par-bake: bake the base alone (or with a thin layer of sauce) for 2–3 minutes on steel/stone.
- Add light toppings and finish 3–4 minutes with the grill on.
Recipe C: versatile compromise
A single adaptable dough for both styles. Rolled thin it becomes crispy; left thicker it develops a soft crumb with a crispy crust.
Ingredients
| Ingredient | % | 1 kg flour | 1.3 kg flour |
|---|---|---|---|
| 🥣 Autolyse (mix and rest 20–30 min) | |||
| Re-milled semolina | 38% | 380 g | 494 g |
| Strong type 1 flour (W 300+) | 37% | 370 g | 481 g |
| Rice flour (long grain) | 10% | 100 g | 130 g |
| Whole rye | 8% | 80 g | 104 g |
| Legume flour (chickpea/lentils/peas) | 7% | 70 g | 91 g |
| Water | 65% | 650 g | 845 g |
| ✊ Mixing (add after autolyse) | |||
| Fresh brewer's yeast | 0.25% | 2.5 g | 3.3 g |
| Fine sea salt | 1.3% | 13 g | 17 g |
| Extra-virgin olive oil (added last) | 2.5% | 25 g | 32.5 g |
| Total flour | 100% | 1 000 g | 1 300 g |
Method
- Mix all flours with water (hold back 5–10% for possible bassinage). Cover and rest 20–30 minutes.
- Add yeast and knead 3–4 minutes.
- Add salt. Knead 4–5 minutes.
- Drizzle in the olive oil and complete (2–3 min).
- Portion and refrigerate 20–24 hours.
- Remove 2 hours before use.
- Shape according to desired style: thin with a rolling pin (crispy) or gently into an oiled tray (soft inside).
- Bake at maximum oven temperature (250–275°C) on stone/steel preheated for 60 minutes.
Why rice flour makes pizza crispy
Rice flour increases crispiness through four distinct mechanisms:
- Absence of gluten proteins. The pure starch in rice forms a porous matrix that allows water to evaporate easily during baking, producing a dry, crispy surface. Gluten proteins, by contrast, retain moisture and form dense, less permeable structures.
- High starch-to-protein ratio. White rice flour contains about 77.6% starch with only 6% protein (versus 73.3% starch and 11% protein in wheat). More pure starch means more raw material for forming a glassy crust.
- High gelatinisation temperature. Rice starch gelatinises between 71–74°C (versus 58–64°C for wheat). It remains stable longer and then gels in a controlled manner, forming a rigid surface.
- Amylose retrogradation. After baking, amylose chains re-associate forming rigid, brittle semi-crystalline structures. This is the phenomenon responsible for the "crunch": the crystalline structure snaps cleanly under the teeth.
Which rice flour to choose
| Type | Amylose | Effect | Verdict |
|---|---|---|---|
| White long-grain rice (Basmati, Jasmine) | 23–26% | Maximum crispiness, friable structure | ✅ Ideal |
| Brown rice flour | ~23% | Slightly crispier, nutty flavour | ✅ Excellent |
| Short-grain rice | 18–20% | Good but less friable | ⚠️ Acceptable |
| Glutinous rice (mochiko, sweet rice) | 1–3% | Gummy and sticky; opposite effect! | ❌ Never use |
Recommended percentages
| Percentage | Effect | Notes |
|---|---|---|
| 5–10% | Slight increase in crispiness | Minimal impact on workability; good for experimenting |
| 12–15% | Significant crispiness | Pinsa Romana range; requires +5–6% hydration |
| >20% | Fragile dough, hard to work | Not recommended without extra binding agents |
Hydration and baking technique
Two opposite strategies for crispiness
| Strategy | Hydration | Shaping | Result |
|---|---|---|---|
| Low hydration (Roman, scrocchiarella) | 55–58% | 2–3 mm, rolling pin | Uniformly crispy, cracker-like |
| High hydration (tray, peel) | 70–80% | 1–2 cm, risen in tray | Crispy outside, open crumb inside |
The relationship between hydration and crispiness is not linear. A low-hydration dough rolled thin dehydrates completely during baking, becoming cracker-like. A high-hydration dough baked on a sufficiently hot surface develops a crispy outer crust thanks to rapid surface evaporation, while the inside stays moist and airy.
Hydration adjustment with rice flour
For every 5% of rice flour added to the blend, increase hydration by +2–3 percentage points. The extra water should be added gradually (bassinage) because rice starch absorbs slowly.
| Rice flour | Adjustment | Tray hydration (base 70%) | Thin hydration (base 55%) |
|---|---|---|---|
| 0% (no rice) | — | 70% | 55% |
| 10% | +4–5% | 74–75% | 58–60% |
| 12% | +5–6% | 75–76% | 60–61% |
| 15% | +6–8% | 76–78% | 61–63% |
Tips for the home oven
- Baking steel > pizza stone: conducts heat 18 times faster and recovers temperature in 75–90 seconds (versus 4–6 minutes for stone).
- Preheating: at least 60 minutes at maximum temperature (250–275°C) with the steel/stone inside.
- Par-bake (pre-baking): 2–5 minutes base only (or with a thin layer of sauce) before adding toppings. Creates an impermeable barrier that keeps the bottom crispy.
- Cold maturation 24–48 hours: enzymes break down starch into simple sugars that participate in the Maillard reaction, producing a more golden, crispy crust.
- Dusting with rice flour: for stretching high-hydration doughs. Burns much more slowly than semolina.
- Final grill burst: 1–2 minutes with the grill on to brown and crisp the top surface.
Salt in the dough: what changes and how much to use
Chemical effects on the gluten network
Salt neutralises the negative charges on gluten proteins (glutenin and gliadin), allowing them to come closer together and form stronger bonds. Scientific studies confirm that salt strengthens the gluten network by up to 86%, improving gas retention during fermentation. In practice:
- More salt → tighter gluten, more elastic dough, less sticky, easier to stretch, denser and more compact crumb.
- Less salt → more extensible gluten, more open crumb structure, but risk of a slack, hard-to-handle dough.
Effects on fermentation
Salt slows yeast through osmotic pressure. Above 2.5%, yeast viability drops significantly (up to 68% reduction in 4 hours). This means:
- With little salt (1–1.5%), reduce the yeast or shorten the timing, otherwise the dough over-ferments.
- With high salt (2.5–3%), longer room-temperature fermentations can be managed without risk of over-proofing.
- With cold maturation (fridge at 4°C), the cold already slows the yeast; salt can remain low without problems.
Effects on crispiness and crumb
Above 2%, the crumb structure becomes denser and more closed (fewer large air pockets); below 2% the dough is more extensible with larger, more open air pockets. For crispiness:
- For a fully crispy, thin pizza (Roman style), slightly higher salt (2–2.5%) compacts the structure making it cracker-like.
- For a pizza with soft, open crumb inside, lower salt (1.3–2%) promotes open air pockets and a light crumb.
Salt also contributes to browning: it concentrates sugars on the surface and indirectly participates in the Maillard reaction.
How much salt by style
| Amount | g/kg flour | Style / context |
|---|---|---|
| 1–1.3% | 10–13 g | Health-conscious choice; Tuscan bread; cold fermentation |
| 1.5% | 15 g | Reduced sodium; no noticeable difference in dough performance vs 2% |
| 2% | 20 g | Standard bread-making; most pizzas |
| 2–2.5% | 20–25 g | New York style, tray pizza, bold flavour |
| 2.5–3% | 25–30 g | Traditional Neapolitan; compensates for weak flours |
Types of salt: what changes
Once dissolved in the dough, the type of salt matters little chemically: it is all sodium chloride. The practical differences concern solubility and dosing precision:
| Type | NaCl | Notes for dough |
|---|---|---|
| Fine sea salt | 97–99% | ✅ Recommended: dissolves instantly, precise dosing, no anti-caking agents |
| Refined fine salt (iodised) | 99.5% | Works well; contains iodine and anti-caking agents (not problematic) |
| Coarse unrefined sea salt | 95–97% | Must be dissolved in water BEFORE adding to flours to avoid residual granules |
| Kosher salt (flat flakes) | ~99% | Watch the volume: 1 tsp kosher ≠ 1 tsp fine salt. Always weigh in grams |
| Pink, black, smoked salt | 95–98% | No measurable functional advantage; flavour difference is lost during baking |
Fats, malt and other factors
The myth of oil making pizza crispy
Contrary to popular belief, adding oil or fats to the dough does not directly promote crispiness. Fat acts as a lubricant between gluten strands, producing tenderness (softer crumb), not crispiness. Oil is useful for:
- Extensibility: makes thin stretching easier without tearing (essential for scrocchiarella).
- Oil UNDER the pizza (in the tray): that actually fries the bottom creating real crispiness.
- Post-baking preservation: slows the loss of crispiness in the hours after baking.
Diastatic malt powder: the home-oven ally
Diastatic malt powder contains active amylase enzymes that break starch into simple sugars, increasing browning (Maillard reaction) without making the pizza sweet. Dosage: 0.3–0.5% of flour weight. Up to 5% total sugar, the yeast consumes most of it during fermentation, so no sweetness is perceived.
Semolina or re-milled semolina for dusting the work surface
Coarse semolina or re-milled semolina under the pizza serves as a non-stick agent and creates micro-points of crispy toasting on the bottom. An effective alternative is rice flour: it does not burn even with prolonged baking and is perfect for high-hydration doughs.
Why legume flours in the dough
Legume flours (chickpea, lentils, peas) at 5–8% perform four roles in pizza dough:
- Intense browning (Maillard reaction). Legume proteins are rich in lysine and other free amino acids that react rapidly with residual sugars during baking. The result is a significantly darker, more golden crust compared to wheat flour alone; browning increases progressively with the percentage of legume flour.
- Surface crispiness. Legume proteins do not form gluten: during baking they denature and solidify into a rigid matrix, contributing (together with rice flour) to a harder, more brittle crust. Firmness increases significantly already at 5–10%.
- Amino acid complementation. Wheat is low in lysine; legumes are rich in it. Adding 5–15% legume flour improves the overall protein profile of the dough without need for animal proteins.
- Fibre and satiety. Legume flours provide soluble and insoluble fibre (3–5 times more than Italian 00 flour), slowing glycaemic response and increasing the feeling of fullness.
Limits and optimal dosage
| Percentage | Effect on workability | Effect on final product |
|---|---|---|
| 5% | Negligible; dough virtually identical to 100% wheat | Slightly increased browning; barely noticeable flavour |
| 8–10% | Slight reduction in extensibility; increased water absorption | Noticeable browning; crispier, more golden crust; rustic flavour perceptible |
| 15–20% | Weakened gluten network; reduced volume; less elastic dough | Very dark crust; denser crumb; dominant legume flavour |
Sources
- PizzaBlab - The Science of Salt in Pizza Dough
- American Society of Baking - Rice Flour
- Cooking StackExchange - Why Rice Flour Produces Crispier Crusts
- PinsaRomana.info - What is Pinsa Romana
- Italian Recipe Book - Pinsa Romana (16% rice flour)
- The Bread Code - Pizza Romana Calculator
- Baking Steel - Temperature and Baking
- Vincenzo's Plate - Roman Style Pizza
- PMQ / Tom Lehmann - Reducing Salt Levels in Dough
- King Arthur Baking - Salt in Bread Dough
- The Pizza Heaven - Salt in Neapolitan Pizza Dough
- Nordic Dough - Pizza Dough Salt Percentages
- MDPI Foods - Influence of NaCl on Soft Wheat Dough (2020)
- Tasting Table - Best Salt for Pizza Dough (Tony Gemignani)
- Serious Eats - Three Doughs to Know