01
Cornstarch
10.0best for cake1/2 cup : 1 cup
Best as thickener sub only
10.0
rice flour substitute
in cake.
Rice Flour gives Cake its structure, absorbing liquid and supporting the rise into a tender crumb. A substitute needs a similar starch and protein balance.
top substitutes
adjustment for this dish
Cornstarch is pure starch with no protein and gives a velvety, fragile crumb — use 0.5 cup per cup rice flour and pair with another flour (oat or sorghum) for structure. The tender texture is dramatic but the rise is weaker; increase baking powder by 1/2 teaspoon per cup and sift 3 times.
02
Oat Flour
10.0best for cake1 cup : 1 cup
Not GF; adds slight oat flavor
10.0
adjustment for this dish
Oat Flour holds moisture via beta-glucans, giving cake a moist crumb that lasts 2 days longer on the counter. Swap 1:1, reduce milk by 2 tablespoons per cup since oat is thirstier, and whisk dry ingredients thoroughly. Fold gently; oat absorbs creaming-aerated fat efficiently but collapses if over-stirred.
03
Sorghum Flour
10.0best for cake1 cup : 1 cup
Neutral GF flour swap
10.0
adjustment for this dish
Sorghum Flour has 11% protein and brings a subtle honey note that enhances vanilla cakes. Swap 1:1 by volume, sift with baking powder twice, and fold in alternating thirds. The crumb is slightly denser than rice flour but bakes more evenly; toothpick clean comes 2 minutes earlier at 32 minutes.
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04
Millet Flour
10.01 cup : 1 cup
Mild and light, gluten-free; good for flatbreads
10.0
adjustment for this dish
Millet Flour is granular and sweet, producing a cornbread-like crumb if untreated. Swap 1:1, sift 3 times to break up particles, and add 1 tablespoon milk per cup to compensate for its dryness. The crumb stays tender and moist but the pan rises 10% less — fill pans to 70% full.
05
All-Purpose Flour
10.01 cup : 7/8 cup
Lighter and grittier; use 3/4 cup AP flour per cup rice flour, loses gluten-free benefit
10.0
adjustment for this dish
All-Purpose Flour develops gluten when whisked, so cream butter and sugar the full 4 minutes but switch to hand-folding at the flour stage. Use 0.875 cup APF per cup rice flour; the crumb is sturdier and less moist, so brush cooled layers with simple syrup to compensate. Bake at 350°F, not 335°F.
06
Cassava Flour
6.71 cup : 1 cup
Grain-free, similar texture; slightly stickier dough
6.7
07
Cake Flour
6.71 cup : 1 cup
Fine soft flour for delicate bakes; lower protein yields tender crumb, reduce liquid slightly
6.7
08
Potato Flour
6.73/4 cup : 1 cup
Heavier; use less to avoid density
6.7
09
Coconut Flour
6.71/4 cup : 1 cup
Very absorbent, use 1/4 cup and add extra egg
6.7
technique for cake
technique
Rice flour cake demands a true creaming step — 4 minutes at medium-high with room-temperature butter at 67°F — because rice starch has no gluten to trap air, so the baking powder and creamed butter do all the leavening work. 5 tsp per cup) to break up the heavier particles, then fold in thirds alternating with milk in two additions to keep the batter tender and moist.
Bake at 335°F, not 350°F, because rice starch scorches faster than wheat; a toothpick should come out with 2-3 moist crumbs at 34 minutes. 5x its batter height, so fill pans only two-thirds full.
Cool in the pan exactly 10 minutes — rice flour crumb is fragile and turns gummy if left to steam longer. The crumb should spring back when pressed, not compress flat.
pitfalls to avoid
watch out
Don't cream cold butter — at fridge temperature (40°F) rice flour cake batter seizes and the crumb bakes coarse; butter must sit at 67°F for proper aeration.
watch out
Avoid opening the oven before 28 minutes — rice flour rise relies on steam, and a 30-second open-door chill collapses the crumb by a full centimeter.
watch out
Sift baking powder with the rice flour twice — clumps undissolved leave yellow-brown spots on the tender crumb and throw off the rise pattern.
watch out
Don't fill pans past two-thirds — rice flour cake batter rises 1.5x and over-filled pans spill and create dense bottom layers that won't pass the toothpick test.
watch out
Cool in the pan only 10 minutes, then flip — leaving longer steams the crumb and turns the moist center gummy, ruining the whisk-smooth mouthfeel.