"Peanut butter powder" refers to peanuts that have been ground into a fine powder. It can be reconstituted with water or other liquids to create a creamy peanut butter-like consistency. Full definition
Then, place 2 teaspoons of sesame oil, 2 teaspoons of soy sauce, and the two tablespoons of peanut butter powder in the pasta water and stir to combine. (thefoodpuzzler.com)
As well, I used 1 cup of peanut butter powder instead of peanut butter. (ambitiouskitchen.com)
I don't recommend using peanut butter powder in place of the almond butter because it's too drastic of a change to assure similar results. (makingthymeforhealth.com)