01
Cornstarch
6.7best for sauce2 tbsp : 1 tbsp
Blend 2 tbsp cornstarch with 14 tbsp all-purpose flour to mimic 1 cup cake flour
6.7
cake flour substitute
for sauce.
Sauces thickened with cake flour reach nappe consistency around 200°F because its fine starch granules swell evenly without the lumps coarser flours throw. A 2-tbsp roux per cup of liquid sets viscosity at about 200 cP, coats a spoon for 3 seconds before sheeting, and survives 10-minute reductions without breaking emulsion. A substitute must thicken at the same temperature, resist syneresis on standing, and hold its coating ability when reheated past 180°F.
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adjustment for sauce
Use 1 tbsp cornstarch per 2 tbsp cake flour as a slurry — cornstarch has roughly twice the thickening power. Whisk into 2 tbsp cold liquid before streaming into the sauce at 180°F. Viscosity sets translucent in 30 seconds; pull from heat once nappe coats the spoon.
02
Arrowroot
3.3best for sauce2 tbsp : 1 tbsp
Blend 2 tbsp arrowroot with 14 tbsp all-purpose flour as a gluten-free cake flour substitute
3.3
adjustment for sauce
Use 1 tbsp arrowroot per 2 tbsp cake flour as a slurry. Arrowroot gels glossy-clear at 175°F and tolerates acidic sauces (down to pH 4.5) where cornstarch breaks. Stir in off-heat just before serving — sustained boil past 200°F over 5 minutes thins the bond.
03
All-Purpose Flour
6.77/8 cup : 1 cup
Use 1 cup minus 2 tbsp AP flour per cup cake flour; sift twice for lighter texture in delicate cakes
6.7
adjustment for sauce
Use 1 tablespoon hazelnut oil per 1 tablespoon olive oil — finishing only, since hazelnut oil's 320 degrees F smoke point breaks above that heat. Drizzle into completed sauces off-heat in the final 30 seconds for a toasted aromatic layer that sits heavier at ~90 centipoise than olive oil's 84.
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04
Rice Flour
6.71 cup : 1 cup
Gluten-free with fine crumb; best blended with other flours for structure
6.7
adjustment for this dish
Swap 1:1 in sauce work for gluten-free thickening. Rice flour disperses lump-free directly into 200°F stock and holds nappe through 10-minute simmers without breaking. The sauce stays slightly cloudier than wheat-based versions but reheats without weeping below 180°F.
05
Cassava Flour
3.31 cup : 1 cup
Gluten-free 1:1 swap with neutral flavor; texture is slightly gummier
3.3
adjustment for this dish
Swap 1:1 for gluten-free sauce thickening. Cassava gels at 180°F and holds nappe through brief simmers, but past 8 minutes above 200°F the texture turns gummy. Slurry 2 tbsp in 1/4 cup cold stock before streaming in to avoid pasty clumps in pan sauces.
06
Bread Flour
6.77/8 cup : 1 cup
Higher gluten so use less and add 2 tbsp cornstarch per cup; crumb will be denser
6.7
adjustment for this dish
Use 7/8 cup bread flour with 2 tbsp cornstarch per cup of cake flour. Bread flour thickens sauces faster — nappe in about 3 minutes at 195°F — but produces a chewy mouthfeel that suits gravies more than veloutés. Cook the roux 5 minutes to soften the gluten edge.
07
Whole Wheat Flour
6.77/8 cup : 1 cup
Nuttier flavor and denser crumb; best in muffins or quick breads, not delicate cakes
6.7
adjustment for this dish
Swap 7/8 cup per cup. Whole wheat tints sauce tan with visible bran specks and absorbs 10% more liquid, so bump stock by 2 tbsp. Suits hearty pan sauces for game or mushroom ragù; not for clean white sauces or béchamels where color and grit show.
08
Spelt Flour
6.71 cup : 1 cup
Slightly sweet and nutty; lighter than whole wheat but denser than cake flour
6.7
09
Oat Flour
6.71 cup : 1 cup
Mild sweetness; makes tender crumb but results are slightly more crumbly
6.7
10
Semolina Flour
6.71 cup : 1 cup
Finer grind works in sponge cakes; yields chewier, denser crumb than cake flour
6.7