Bake this irresistible Aunt Peggy'S Bar Cookies at home. Made with yellow cake mix, crunchy peanut butter, brown sugar and water. Easy step-by-step inst…
This Aunt Peggy'S Bar Cookies relies on simple, everyday ingredients such as yellow cake mix, crunchy peanut butter, packed brown sugar and water. It comes together quickly and makes 4 servings, at about 1110 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Aunt Peggy'S Bar Cookies delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.
Updated Jun 30, 2026