Use almond milk instead of oat milk at 1:1. Oat milk and almond milk do similar work in a recipe, but they are not identical, and the ratio is what makes the swap succeed. This guide gives the exact ratio, an equivalence table for every amount you will need, what changes in the finished dish, and when you should not make the swap at all. All ratios on this page come from the CookScale substitution data, and every result is approximate; taste the dish before serving, and adjust the seasoning if the swap changes the flavour.
Oat milk to Almond milk: equivalence table
The table below scales the ratio — 1:1 — to every amount you will need, from a quarter of a cup up to three cups. Use the row that matches your recipe, and do not guess the scaling in your head, because a small error in the ratio grows with the size of the recipe.
| Oat milk needed | Almond milk |
|---|---|
| 1/4 cup | 1/4 cup |
| 1/2 cup | 1/2 cup |
| 1 cup | 1 cup |
| 2 cups | 2 cups |
| 3 cups | 3 cups |
When a recipe calls for an amount that is not in the table, scale the ratio proportionally: work out how many cups of oat milk the recipe needs, then multiply the ratio by that number. For a single cup, the ratio is exactly as stated; for half a cup, halve it; for two cups, double it. Keep the recipe scaler open while you cook, and you can scale the whole recipe, including the substitution, in one step.
What changes when you use almond milk instead of oat milk
Almond milk is thinner and lighter than oat milk, so the swap makes the result a little less rich and a little less sweet. In a smoothie, the almond milk gives a lighter, more refreshing drink, because it does not have the body that oats add. In baking, almond milk browns slightly less readily, because it contains fewer natural sugars, so the crust stays a shade paler. The flavour is the main change: almond milk has a light, nutty note, while oat milk tastes of oats, which is mild and slightly sweet. In a coffee, almond milk froths less well and the foam collapses faster, which is why baristas usually prefer oat milk. In a savoury sauce, the almond flavour is lighter and less noticeable than the oat flavour, so the sauce tastes cleaner. The swap is also important for anyone who needs a low-calorie milk, because almond milk is usually lower in calories than oat milk.
When not to substitute oat milk with almond milk
Do not use sweetened or flavoured plant milk in savoury sauces, and do not expect the same browning in baking. That rule is the most important part of this page, because a substitution that works in one recipe can fail badly in another. Oat milk does a specific job in each recipe, and the swap only works when the substitute can do the same job. In a recipe where oat milk is the main structure — where it holds the bake together, or where its flavour is the point of the dish — the substitute will not do, and it is better to wait until you have the real ingredient, or to choose a different recipe. In a recipe where oat milk is a supporting ingredient, where it adds moisture, richness or flavour but does not carry the dish, the swap usually works well. The test is simple: if removing the oat milk would ruin the recipe, do not substitute it; if the recipe would still work without it, the substitute is probably safe.
Why this swap works
Plant milks swap 1:1 in most recipes; sweetened or flavoured versions change the taste. That is the principle behind the swap: the substitute does the same chemical or structural job as the original, even though it looks and tastes different. The acid in an acidic substitute activates baking soda, the fat in a fatty substitute shortens a dough, and the liquid in a liquid substitute hydrates the flour. When the substitute does the same job, the swap works; when it does a different job, the swap fails. The ratio on this page is the amount that makes the substitute do the same job as the original, and it is worth following exactly, rather than guessing, because a small error in the ratio changes the job the substitute does.
Worked examples: oat milk to almond milk in real recipes
1. A lighter smoothie for a hot day
A smoothie for a hot day needs a cup of oat milk, so use a cup of almond milk instead, measured exactly the same way. The almond milk gives a lighter, more refreshing drink, because it does not have the body that oats add, and its nutty note suits the fruit in the smoothie. Blend the smoothie as usual, and use unsweetened almond milk if the recipe was written for unsweetened oat milk.
2. A cake that needs a lighter crumb
A sponge cake that needs two cups of oat milk takes two cups of almond milk, measured cup for cup. The almond milk gives a slightly lighter crumb, because it is thinner than oat milk, and the crust stays a shade paler, because almond milk contains fewer natural sugars. Bake the cake as usual, and watch the oven, because the paler crust can make it harder to tell when the cake is done; use a skewer to check.
3. A savoury sauce that needs a cleaner flavour
A savoury sauce for two needs half a cup of oat milk, so use half a cup of almond milk, measured exactly the same way. The almond milk gives the sauce a cleaner flavour, because its nutty note is lighter than the oat flavour, and the sauce stays thinner, which suits a delicate dish. Stir the almond milk in slowly over a low heat, and taste the sauce before serving, because the seasoning may need a pinch more salt.
How to make the swap
Measure the almond milk exactly as you would the oat milk, cup for cup, and use it in the same place in the recipe. No other change is needed. Use unsweetened almond milk if the recipe was written for unsweetened oat milk, because sweetened almond milk adds sugar the recipe did not ask for. Shake the carton well before pouring, because almond milk can settle and the last glass is thinner than the first. For coffee, warm the almond milk gently and do not expect it to froth as well as oat milk; pour it slowly and accept a thinner foam. For baking, the swap is a straight replacement, and the batter needs no adjustment.
Common mistakes
The most common mistake is using sweetened almond milk in a recipe written for unsweetened oat milk, which adds sugar the recipe did not ask for and can make a savoury sauce taste odd. Check the carton. The second mistake is expecting almond milk to froth like oat milk in a coffee: it does not, and the foam collapses quickly, so do not judge the swap by the foam. The third mistake is using almond milk in a recipe for someone with a nut allergy, which is the opposite of the swap in the other direction; almond milk contains nuts, so it is not safe for a nut-free household. Finally, do not use almond milk in a recipe where the oat flavour is the point, such as an oat porridge, because the almond flavour is completely different.
Frequently asked questions
Can I substitute almond milk for oat milk 1:1?
Yes, almond milk replaces oat milk cup for cup, with no other change needed. The swap is a straight replacement, and the batter, sauce or drink needs no adjustment. Use unsweetened almond milk if the recipe was written for unsweetened oat milk, because sweetened almond milk adds sugar the recipe did not ask for.
Is almond milk thinner than oat milk?
Yes. Almond milk is thinner and lighter than oat milk, because it does not have the body that oats add. In a smoothie, the result is lighter and more refreshing, and in a sauce, it stays thinner, which suits a delicate dish. The flavour is also different: almond milk has a light, nutty note, while oat milk tastes mild and slightly sweet.
Does almond milk froth as well as oat milk?
No. Almond milk froths less well than oat milk, and the foam collapses faster, which is why baristas usually prefer oat milk for coffee. If you use almond milk in a coffee, warm it gently and pour it slowly, and accept a thinner foam. The taste is still good, and the coffee is lighter in calories.
Is almond milk safe for a nut allergy?
No. Almond milk contains nuts, so it is not safe for anyone with a nut allergy. This swap goes in the opposite direction from the nut-free swap: oat milk is nut-free, while almond milk is not. If the recipe is for a nut-free household, use oat milk, not almond milk, and check the carton for allergen warnings.
Does almond milk work in baking?
Yes, very well. Almond milk replaces oat milk cup for cup in cakes, muffins and pancakes, and the batter needs no adjustment. The bake browns slightly less readily, because almond milk contains fewer natural sugars, so the crust stays a shade paler. Use a skewer to check whether the bake is done, rather than judging by the colour alone.