Learn how to make oat milk like the pros! After a lot of research and testing, we figured out an easy, consistent way to make perfectly smooth, creamy, lightly sweet oat milk at home. This is the real deal! The trick is to soak oat flour with a blend of enzymes. Since the starch is broken down, you can heat and blend this oat milk, and it won't get slimy! Adjust the amount of oats slightly for different thickness, add flavors or sweetener, and include oil or cashews for a richer, extra creamy oat milk.Yield: makes 3 ½ cups, or 28 fluid ounces
Pour the oats into a dry blender. Blend for about 5 seconds or until the consistency of a coarse flour. Pour oat flour into a large bowl.
Open one digestive enzyme capsule and dump the powder into the bowl (discard the capsule).
Heat the water to approximately 150°F (66°C). I like to microwave it in a large bowl. At this temperature water feels very hot but won't immediately scald you (I use this infrared thermometer).
Pour the hot water into the bowl with the oat flour and enzymes, and stir well. For reference, use a spoon to taste the oat water (will be very bland). Set aside for 30 to 45 minutes. I like to stir occasionally during this time. After 30 minutes, taste the water again. It should now taste lightly sweet. If it doesn't, either the enzymes used aren't effective or the water wasn't the correct temperature. If you think the water was too cool, microwave the bowl for about 30 seconds to raise the temperature, and check again in 15 minutes.
Blend and Strain
Rinse out the blender to remove any oat flour, and pour the oat-water mixture into the blender. Starting on low, quickly increase to high speed, and blend for about 10 seconds. We don't need to blend long since the oats were already broken down to flour. If not using a Vitamix or other high-speed blender, you may need to blend in two batches due to the large volume.
Use a nut milk bag to strain the oat milk into a large heavy-bottom pot or saucepan. I like to place one nut milk bag inside another, for a double layer. Or you can strain it twice using the same bag (rinse in between uses). Since the starch has been broken down into sugars, it's fine to squeeze the bag and won't result in slimy oat milk. However, if you notice that it feels slimy while straining it through the bag, this means the enzymes did not work. Review the tips in the Notes section below before proceeding.Save the oat pulp for baking or add it to smoothies for extra fiber.
Heat the Oat Milk
Over medium heat and whisking frequently, slowly bring the oat milk to a simmer. Aim for 195 degrees F. If you don't own a thermometer, look for these visual clues: tiny bubbles around the edges and slight movement in the center. Whisking, maintain this low simmer for about 10 seconds, then remove from heat. Add a pinch of salt and the vanilla, if using.
OPTION: add oil or cashews. Let the oat milk cool for about 20 minutes or until barely warm (so it's safe to blend on high speed). Rinse out the blender, and pour in the milk. If using cashews, simply blend with the milk until completely smooth. To add oil, while blending on high speed, remove the cap from the pour spout and slowly drizzle in the oil. Add the sunflower lecithin and blend for a few more seconds.
Let the oat milk cool, and pour into a clean, lidded glass jar. Store in the refrigerator for up to 5 days.
Video
Notes
Enzymes: This is covered more fully above. Look for a digestive enzyme blend similar to this 365 product or this one by NOW Supplements (these are the only two I've tested). You'll get the best results with a product that contains both amylase and glucoamylase.Tips & Troubleshooting:
RECIPE UPDATE: Since first sharing the recipe, I've heard from a few people who had trouble with the enzyme process not working. Initially, I thought the most likely culprit was the enzymes (which is still a possibility). But now I'm more convinced it's due to using thicker-cut rolled oats. So after more testing, I've updated the instructions to include blending the oats into flour first. This solves the "thick oat problem" by allowing the enzymes to easily access the starches.
If you notice that the oat milk feels slimy while straining it, this means the enzymes didn't work. In other words, there's no point in heating it in the next step, unless you want to turn it into oat "pudding." You can always salvage the batch by adding vanilla and a sweetener and enjoying it for dessert! Then review all of the steps, try to figure out what went wrong, and try again.
For Chocolate Oat Milk - per 1 cup of milk, add 1 medjool date, or your sweetener of choice, and 1.5 to 2 tablespoon cacao or cocoa powder. Note: it's difficult to estimate the nutrition information since parts of the oats are strained and removed. This estimate is for plain oat milk with no added fat.