01
Rolled Oats
10.0best for biscuits1 cup : 1 cup
Interchangeable in most recipes
10.0
oats substitute
in biscuits.
Oats layered with fat gives Biscuits their signature flaky lift. The stand-in needs comparable starch and protein to keep those layers distinct.
top substitutes
adjustment for this dish
Rolled oats ground to flour is nearly identical to oats flour, but pulse in a spice grinder 15 seconds for a fine 500-micron texture before cutting in cold butter. Use a 1:1 cup swap; keep buttermilk at 3/4 cup per 2 cups to preserve the flaky layers without the rougher rolled-oat shreds tearing your pull apart seams during the chill.
02
Barley
10.0best for biscuits1 cup : 1 cup
Chewy texture, good for porridge
10.0
adjustment for this dish
Barley flour brings 12% protein (vs oats' 11%) and more soluble fiber, so it holds structure well. Swap 1:1 cup but reduce buttermilk by 2 tbsp per 2 cups because barley absorbs less, then bake biscuits at 425°F for 14 minutes — one minute longer than oats — to set the cold butter-layered crumb without a gummy base.
03
Wheat Bran
10.0best for biscuits1 cup : 1 cup
Similar fiber boost in baking
10.0
adjustment for this dish
Wheat bran is coarse and wheat-flavored; swap 1:1 cup but expect rougher flaky layers and a slightly nutty tender finish. Add 1 tsp honey per cup to soften the bran edge, chill the dough an extra 10 minutes before cut in work, and bake to a deeper golden crust since bran browns faster than oats.
show 7 more substitutes
04
Buckwheat
10.01 cup : 1 cup
Earthy flavor; gluten-free porridge base
10.0
adjustment for this dish
Buckwheat has no gluten and a dense earthy flavor — scoop with the same measure but add 1 tsp baking powder per cup beyond the recipe to compensate for weaker rise. The cold cut in technique still matters for pull apart layers, but expect a slightly short, crumbly biscuit rather than fluffy towers.
05
Millet
10.01 cup : 1 cup
Cook with extra liquid for creamy porridge
10.0
adjustment for this dish
Millet flour is 11% protein but with a sandy texture; swap 1:1 cup and stack rounds as usual, but add 1 tbsp extra buttermilk because millet drinks liquid fast. Chill the cut dough 20 minutes (not 15) before the 425°F bake to keep the fat cold enough for tender flaky layers.
06
Brown Rice
10.01 cup : 1 cup
Use rice flakes for quick-cook breakfast swap
10.0
07
Polenta
10.01 cup : 1 cup
Makes porridge-style sub, not GF
10.0
08
Wheat Germ
6.71 cup : 1 cup
Rolled oats add similar texture
6.7
09
Quinoa
6.71 cup : 1 cup
Works as hot breakfast cereal, higher protein
6.7
10
Cornmeal
6.71 cup : 1 cup
Makes polenta not porridge, different texture entirely
6.7
technique for biscuits
technique
Oats ground to flour stage brings beta-glucan gums that hold buttermilk in a cold dough, so the cut in fat can stay in pea-size chunks that steam into flaky layers during the first 7 minutes at 425°F. Scoop with a 1/3 cup measure and stack two rounds before baking to double the pull apart seams.
Unlike bread where oats dissolves into a soft crumb over a 60-minute proof, biscuits demand you chill the grain 20 minutes before cutting so it doesn't slurp the buttermilk and collapse the short structure. Unlike scones, which tolerate a single fold for a tender wedge, biscuits need a three-letter fold to laminate at least six distinct layers.
Keep the dough puck at 40°F until the tray hits the rack; warmer than 55°F and the fat smears, producing a fluffy top but a dense base. 5x before the crumb sets at the 12-minute mark.
pitfalls to avoid
watch out
Avoid warming the butter above 55°F before cut in — smeared fat eliminates the flaky layers and leaves a dense, short crumb.
watch out
Don't twist the cutter when scoring dough rounds; a straight press preserves the vertical rise so biscuits pull apart cleanly.
watch out
Skip extra buttermilk past 3/4 cup per 2 cups oats flour or you'll bake a pancake-flat tender disc instead of a stacked tower.
watch out
Chill the cut rounds 15 minutes before baking at 425°F; warmer dough slumps sideways and the fluffy interior never sets.
watch out
Use cold hands or a pastry cutter to mix — body heat melts the fat pockets that give biscuits their signature layer separation.