Step 1

Add the Biscoff cookies to a high-speed blender or food processor and blend into a fine crumb about 30 seconds.

Step 2

Add the protein powder and blend for a few seconds to mix the powder and cookie crumbs together.

Step 3

Scrape down the sides, then pour in 1/4 cup of milk.

Step 4

Blend until everything comes together and it smooths out (about 1 more minute). You may need to scrape down the sides once more before finishing.

Step 5

Add the cookie butter to a small container and place it in the fridge for at least one hour (I always recommend overnight). When you let the protein cookie butter sit, it's going to firm up into an authentic cookie butter consistency, but the flavor will also improve significantly. With no-bake recipes that use protein powder, the flavor of the protein powder becomes more subtle as it sits.