This one goes out to all of my lactose-intolerant friends out there! If you’re not already making your own homemade oat milk, promise me you’ll try this recipe. Because they’re charging waaaaay too much for it at the store, considering how simple it is to make. It literally takes about five minutes and it tastes SO GOOD. Like, I usually feel kind of “meh” about oat milk, but I wanted to guzzle the entire batch because it was so cool, creamy, and refreshing. So promise me you’ll bookmark this page and give it a try this weekend, K?
When I tell you how simple this oat milk is, you might have a little heart attack when you realize how much you’ve been paying for it at the store. Oat milk is literally just oats, water, salt, vanilla (optional), and a sweetener (optional). That’s it. Five simple ingredients! Here’s a little more detail about what I used to make my homemade oat milk:
Straining is one of the most important steps in the oat milk-making process because it can change the texture of the oat milk quite a bit. I tested a few different methods for straining so I could give you some options. Here’s what I found:
I tried frothing this homemade oat milk with a handheld frother, and, unfortunately, it does not create a nice foam. Oats do not contain a lot of fat or protein, which is needed to create a stable foam, so store-bought oat milk usually has to have thickeners or stabilizers added to help it foam.
I’m not kidding when I say this oat milk was so good that I wanted to chug it straight from the jar. But keep in mind that homemade oat milk does not contain emulsifiers or stabilizers like store-bought oat milk, so you will need to shake it very well before you pour, every time.
Oat milk is great added to coffee or poured over a bowl of cereal (or maybe even oatmeal – how meta). I haven’t tested baking with this oat milk or using it as a substitute for dairy milk in recipes, so proceed with caution. Remember that oat milk does not contain as much fat or protein as dairy milk, which may cause it to react differently in recipes.
Learn how to make oat milk with just four simple ingredients and enjoy the creamiest, most refreshing oat milk for pennies on the dollar.
Stir the vanilla and brown sugar into the cold water until dissolved.
Add the oats, salt, and water mixture to a blender. Blend on high for 30 seconds.
Pour the blended oat mixture through a strainer like a nut bag, cheese cloth, metal coffee filter, or a double layer of metal sieves to filter out the oat pieces.
Chill the oat milk completely (preferably overnight), then shake very well before serving. Keep the oat milk refrigerated for up to four days.
See how we calculate recipe costs here.
All you need to make your own oat milk is 4 cups cold water, 1 cup rolled oats (NOT quick oats), 1/4 tsp salt, 1/2 tsp vanilla extract, and sweetener (I used 2 Tbsp brown sugar).
Add 2 Tbsp brown sugar and ½ tsp vanilla to 4 cups cold water and stir until the sugar is dissolved. Add the rolled oats, salt, and water mixture to a blender. I used our big blender for a four-cup batch, but I also tested a half-cup batch in our mini blender and it worked fine.
Blend the oats and water for 30 seconds, no more! It’s a good idea to time this on your watch or phone so you don’t accidentally count too fast or too slow. Over-blending the mixture can make the oat milk too thick or slimy.
Immediately pour the mixture through a strainer into a bowl. I’m showing the oat milk poured into a nut bag supported by a metal strainer over the bowl, but you can also use cheesecloth or metal coffee filters (see blog text above the recipe for details on each method).
Make sure to chill the oat milk completely (like, overnight) for the best flavor. Because this is homemade and doesn’t have added emulsifiers or stabilizers, it will separate like in the photo above. Just give it a good shake shake shake before enjoying it each time and it will be as right as rain!
The oat milk will keep in the refrigerator for about four days, so make a half batch if needed to make sure none goes to waste!