Best Milk Substitutes for Cooking and Baking (With Ratios)
The best milk substitute is 1/2 cup (125 mL) evaporated milk mixed with 1/2 cup (125 mL) water, which replaces 1 cup of whole milk in any recipe. For dairy-free cooking and baking, unsweetened soy milk is the closest match, swapped 1:1.
Milk substitutes and ratios
| Substitute | Amount per 1 cup milk | Best for | Why it works |
|---|---|---|---|
| Evaporated milk + water | 1/2 cup + 1/2 cup | Everything | Evaporated milk is milk with about 60% of the water removed |
| Powdered milk + water | 1/3 cup (25 g) powder + 1 cup water | Baking, bread, sauces | Dried milk solids rehydrate to real milk |
| Half-and-half + water | 1/2 cup + 1/2 cup | Sauces, mashed potatoes, custard | Dilutes the extra fat to roughly milk level |
| Unsweetened soy milk | 1 cup | Cakes, pancakes, béchamel, custard | Similar protein; browns and thickens well |
| Unsweetened oat milk | 1 cup | Muffins, pancakes, coffee, soups | Creamy; its starch thickens with heat |
| Unsweetened almond milk | 1 cup | Muffins, smoothies, quick breads | Neutral, but low in protein and thin |
| Coconut milk beverage (carton) | 1 cup | Curries, dairy-free baking | Rich fat, mild coconut flavour |
| Plain yogurt + water | 1/2 cup + 1/2 cup | Pancakes, quick breads | Dairy protein and fat with a tangy edge |
| Water + butter | 1 cup water + 1 Tbsp melted butter | Bread, biscuits in a pinch | Liquid plus a bit of fat |
What milk does in cooking
Whole milk is about 87% water, 3.25% fat, 3.3% protein and 4.8% lactose. Each part has a role:
- Water hydrates flour, dissolves sugar and becomes steam.
- Proteins, casein and whey, add structure, help custards set and feed the Maillard reaction for golden crusts.
- Lactose is a reducing sugar that also browns, which is why milk-brushed buns turn deep gold.
- Fat tenderizes crumb and carries flavour.
Evaporated and powdered milk are real milk with water removed, so adding water back gives nearly identical results. Plant milks differ more. Soy is closest in protein. Almond has only about 1 g protein per cup, so bakes brown less and sauces stay thinner. Oat milk contains starch that thickens when heated, which suits soups but can make pancakes gummy if overmixed.
Chef Fizz says: Always reach for unsweetened, unflavoured plant milk for savoury cooking. Vanilla oat milk in mac and cheese is a plot twist no one wants.
When not to swap
- Cheese-making, ricotta and homemade yogurt. They need dairy casein to curdle; plant milks won't set.
- Water in custards and puddings. Without milk protein and fat, they set weakly and taste thin.
- Almond or rice milk in béchamel without extra roux. The sauce won't thicken enough.
- Sweetened plant milks in savoury dishes, or anything where they could add sugar and vanilla.
- Acidic dishes with soy milk. It can curdle with lemon or tomato; add acid last.
Questions
Can I use water instead of milk in baking?
Yes, 1:1, but the result will be paler, less tender and less rich. Add 1 Tbsp melted butter per cup of water to bring back some fat.
Which plant milk is best for baking?
Unsweetened soy milk. It has about 7–8 g protein per cup, close to dairy milk, so it browns, binds and thickens most like the real thing.
Can I use almond milk in a white sauce?
Yes, but use an unsweetened, unflavoured one and expect a thinner sauce. Add an extra 1/2 Tbsp each of butter and flour per cup to compensate.
How do I use powdered milk instead of milk?
Whisk about 1/3 cup (25 g) instant nonfat milk powder into 1 cup water. For whole-milk richness, add 2 tsp melted butter.