Heat oven to 350 degrees. Prepare brownie batter as directed on package; pour into 13-by-9-inch baking dish sprayed with cooking spray. Bake 40 minutes, or until toothpick inserted in center comes ...
Baking In baking, peanut butter adds moisture and flavor to cookies, brownies, and cakes. It pairs well with chocolate and oats and can replace some fats in recipes for a healthier alternative.