Protein-Packed Peanut Butter Cookies

1. Preheat the oven to 325 degrees F (165 degrees C).

2. Combine peanut butter, egg, and vanilla extract in a bowl with a fork. Mix until smooth. Add sugar, whey protein, and salt. Mix well until ingredients are blended together.

3. Scoop the mixture out with a tablespoon and roll into 3/4-inch balls. Place onto ungreased baking sheets, about 1/2 inch apart. Flatten each cookie to 1/4-inch thickness with a fork.

4. Bake in the preheated oven until golden brown on the edges, about 6 minutes. Let cool for at least 3 minutes before transferring to a wire rack to cool completely.

Cook's Notes:

You can use any sweetener you like.

If you are using plain whey powder, consider adding vanilla extract to make up for the missing flavor.

If you attempt to remove the cookies before they have cooled, they will crumble!