Skinny Chocolate Peanut Butter Frappuccino

INGREDIENTS

3/4 cup

double-strength coffee, chilled

1/2 cup

skim milk, chilled

1 tbsp

unsweetened cocoa powder (regular or dark/Dutched)

1 tbsp

powdered peanut butter (such as PB2)

2 cups

ice cubes

sweetener, to taste, such as Stevia, Truvia, Splenda, etc. (optional)

1/2 tsp

creamy peanut butter, warmed