How to Convert Any Recipe to Vegan, Keto, or Gluten-Free in 30 Seconds

Diet conversion is mostly a lookup problem. You know the recipe, you know the constraint, you just need to replace the ingredients that break the constraint with ingredients that do not. The catch is that bad substitutions ruin the dish. A one-to-one swap of coconut flour for wheat flour in pancakes produces a hockey puck. Here are the swaps that actually work, grouped by diet. ## Vegan conversions The big three categories: eggs, dairy, meat. ### Eggs | Role in dish | Swap | |--------------|------| | Binder (meatballs, burgers) | 1 tbsp ground flax + 3 tbsp water | | Leavening (cakes) | 1/4 cup mashed banana + 1/4 tsp baking soda | | Richness (custards) | Silken tofu blended smooth | | Structure (meringue) | Aquafaba, 3 tbsp per egg white | ### Dairy - Butter: refined coconut oil 1:1 for baking, olive oil for savory. - Milk: oat milk for most baking, full-fat coconut for creamy sauces. - Cheese: cashew cream for melted applications, nutritional yeast for umami. Store-bought shreds work in pizza and not much else. - Heavy cream: full-fat coconut milk, chilled and whipped. ### Meat Do not try to recreate the texture of a pork chop. Instead, rebuild the dish around a vegan protein that fits the cooking method. Braises want mushrooms and lentils. Stir-fries want extra-firm tofu or tempeh. Grilling wants seitan or portobello. See /recipes/diet/vegan for recipes built this way from the start. ## Keto conversions Keto lives or dies by carb count. The swaps are narrower than vegan, because keto limits both plant starches and sugars. ### Flour swaps - Almond flour: closest to wheat in baking, 1:1 for cookies and pancakes, reduce by 25% in cakes. - Coconut flour: absorbs four times as much liquid as wheat. Never swap 1:1. Use 1/4 cup coconut flour per 1 cup wheat, add an extra egg. - Psyllium husk: adds structure to keto bread, 1-2 tbsp per loaf. ### Sugar swaps - Allulose: most neutral, browns like real sugar. - Erythritol: cheap, has a cooling mouthfeel, fine in chocolate. - Monk fruit: strong, use the blend versions. ### Starch swaps - Rice: cauliflower rice, riced raw and sauteed hot and fast. - Potatoes: radishes or turnips roasted hard. - Pasta: hearts of palm noodles for cold salads, shirataki for hot. ## Gluten-free conversions The trap: commercial GF flour blends are not interchangeable. Some are mostly rice flour (gritty), some mostly tapioca (gummy), some well-formulated with xanthan gum already added. ### Reliable rules - For quick breads and cookies, a cup-for-cup blend with xanthan works. - For yeast breads, you need a recipe written for GF — conversion almost never works because gluten was providing the structure. - For thickening sauces, cornstarch or arrowroot 1:1 for flour. - For breading, crushed GF cornflakes beat most alternatives. Watch for hidden gluten: soy sauce (use tamari), many stock cubes, beer in braises (use GF beer or wine), and oats unless certified. ## What breaks and what does not Some recipes convert cleanly. A vegetable curry goes vegan with coconut milk, stays gluten-free naturally, and can be served over cauliflower rice for keto without changing anything important. Other recipes resist conversion. A souffle is egg and dairy architecture in a dish — "vegan souffle" is a different dish with the same name. Traditional bread is gluten architecture. Be honest about the category. ## The 30-second version You can do all of this by hand, using the tables above, whenever you have fifteen minutes and a second cup of coffee. Or you can import a recipe into Recipe Manager and hit the "Convert to vegan" (or keto, or gluten-free) button. The AI runs the same substitution logic, adjusts quantities for the swaps that are not 1:1 (looking at you, coconut flour), and flags the ones that will not convert cleanly so you know before you shop. See /recipes/diet/vegan, /recipes/diet/keto, or /recipes/diet/gluten-free to browse recipes that were built around the constraint from the start — often a better starting point than converting one that was not.