Melt vegan butter in a small sauce pot or pan, over medium heat.
¼ cup vegan butter
Whisk in flour until there are no clumps left and you have a thick paste.
3 tablespoons all-purpose flour
Cook for 1 minute, whisking regularly. The paste should start to bubble and thicken further.
Step 2: Make Oat Milk Bechamel
Slowly pour in ½ cup of the oat milk while whisking continuously. Continue to whisk, making sure there are no clumps, until the sauce thickens into a paste.
2 ½ cups oat milk
Add another ½ cup of oat milk, whisking constantly (making sure there are zero clumps) until the sauce thickens once again into a paste.
Next, pour in the rest of the milk (about 1 ½ cups) and whisk until there are no clumps.
Cook the sauce for 12-15 minutes, whisking regularly until the sauce is thickened and coats a spoon. Whisk vigorously towards the end of the cook time as the sauce thickens.
When the sauce is thickened, remove the pot from heat and whisk in the salt, pepper and nutmeg.
If using, add nutritional yeast and/or lemon juice.
2 tablespoons nutritional yeast, 1 tablespoon lemon juice
Taste the sauce and adjust flavors to your liking.
If you find the sauce tastes sweet (oat milk, even unsweetened, has some sugar in it) add additional acid (lemon juice or vinegar) in small increments. Don’t add extra salt to balance out the sweetness (you can add extra salt for saltiness if you like but it may enhance the sweet flavor).
Notes
*Can use vegan margarine. Can also use any type of oil but keep in mind the flavor of the oil will be present in the final sauce. Vegan butter is the best option for a great flavor.
**Select an unsweetened and unflavored oat milk.
***Or black pepper.Accuracy of nutrition information cannot be guaranteed (certain ingredients may not have all nutrients listed in the database); amounts may vary (and will vary depending on brands of ingredients used); all nutrition fact values rounded to the nearest whole number.