Oats
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Common substitutes for oat flour are Oats and Flour, with ratios below.
Oat Flour is known as ground oats, oat meal flour, rolled oat flour, milled oats, and oat powder.
Oat Flour is light on fat richness, light on sweetness, light on bitterness, and light on umami.
Turns tender and slightly chewy when baked, softer and creamier when cooked in liquid like porridge or pudding.
Oat Flour is ground from whole oats, this flour gives baked goods a soft, moist crumb and a mild nutty taste. Use it in pancakes, muffins, and quick breads, usually blended with a gluten flour for structure. Store in a sealed container in a cool spot or freezer to stop it going rancid. Pairs well with cinnamon, banana, and brown sugar.
Oat Flour has low water content. Doesn't add much moisture; batters may need liquid elsewhere.
Gives a dense, tender crumb with a nutty taste. Common in muffins, pancakes, and quick breads. No gluten, so add a binder.
Used to dust or coat food before pan-frying for a light, browned crust. Doesn't hold up alone in the pan.
Makes a tender, slightly grainy coating on fried foods. Browns fast, so watch the heat to avoid scorching.
Thickens stews, porridges, and soups as it hydrates and softens. Adds body and a mild oat flavor.
Works in steamed puddings and dumplings, giving a soft, moist crumb. Needs binding help for structure.
Not used directly on the grill. Burns quickly with no fat or moisture to protect it.
Eaten raw only in no-bake bars or energy bites mixed with fat and sweetener. Tastes starchy and dry alone.
Not typically used in drinks; too starchy and thick to dissolve cleanly.