Whole Wheat Flour
10.0Denser and nuttier; use 3/4 cup plus 2 tbsp per cup AP flour, and add extra liquid to the dough
17 substitutes · avg score 8.4 · Refined wheat flour with moderate protein (~10-12%) that works for cookies, cakes, quick breads, and most everyday baking. The baseline flour when a recipe just says 'flour'.
All-purpose flour turns up in recipes doing two things that have almost nothing to do with each other, and the substitute you want depends entirely on which one you are replacing.
In baking, flour is structure. Its protein — around 10-12% in the all-purpose grade, which is what makes it the sensible default — hydrates and links into gluten when the dough is mixed, and that elastic network is what traps gas and holds the shape of the finished thing. More protein means chewier and stronger. Less means softer and more tender. Nearly every wheat swap on this list is a move up or down that same ladder.
In a sauce or a gravy, flour is a thickener, and the gluten is irrelevant — you are using the starch, which swells and gels as it heats. Any pure starch does this better than flour does, which is why the ratios for the thickening entries are so much smaller than the baking ones.
The database is unusually direct about the split. Two entries carry explicit warnings that they cross the line: breadcrumbs will not thicken sauces or provide gluten structure, and arrowroot will not work for baking structure at all. Sort by job first, then by score.
For baking, the gentlest swaps are the other wheat flours. Bread flour and 00 flour both swap 1:1 at 10.0; bread flour carries more protein than all-purpose, which suits loaves and pizza and can make a cake or a biscuit tougher than intended. Cake flour at 6.7 goes the other way — lower protein, a more tender crumb — and the note asks you to sift it twice, because it is milled fine enough to clump. Spelt at 10.0 is called a gentle swap, lighter than whole wheat.
Whole wheat at 10.0 needs an adjustment rather than a straight substitution: use 3/4 cup plus 2 tbsp per cup of all-purpose, and add extra liquid, because the bran absorbs more water and will otherwise leave the dough tight and the crumb dry. Rye at 10.0 needs a bigger concession still — blend it 50/50 with all-purpose for bread, since pure rye will not rise well on its own.
For gluten-free baking, expect to blend. Rice flour scores 10.0 with a caution about grittiness and a suggestion to mix it with tapioca starch for a better crumb. Sorghum, also 10.0, wants a 50/50 blend with all-purpose in muffins and quick breads to keep the rise. Oat flour at 10.0 is best in cookies and muffins where a slightly heavier crumb reads as a virtue rather than a fault; choose certified gluten-free oats if that matters for your table. Cassava flour at 6.7 is the closest to a genuine 1:1 grain-free swap. Coconut flour at 6.7 is not a swap at all in the usual sense — it is extraordinarily absorbent, so the entry says 1/4 cup per cup plus extra eggs, and a recipe built around it needs to have been written for it.
For thickening, go to the starches and cut the quantity hard. Cornstarch at 10.0 uses half the amount of flour, slurried in cold water first, and the note carries the detail that saves sauces: do not boil it, or it thins back out. Arrowroot at 6.7 is 2 tsp per 1 tbsp of flour and gives a clearer, glossier finish, which is why it suits fruit fillings. Potato flour at 6.7 uses 5/8 cup per cup. And two entries here are neither structure nor thickener — cornmeal at 6.7 belongs in breading and cornbread only, and dry breadcrumbs at 6.7 are a coating or a filler and nothing more.
Denser and nuttier; use 3/4 cup plus 2 tbsp per cup AP flour, and add extra liquid to the dough
Gluten-free with gritty texture; blend with tapioca starch for better crumb in cakes and cookies
Darker and denser with earthy flavor; blend 50/50 with AP flour for bread, pure rye won't rise well
Use half the amount for thickening; mix with cold water first, and don't boil or it thins out
Slightly less chewy result; works for most breads
Lighter than whole wheat, gentle swap