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Peanut Butter Breakfast Bars in a pile on a wooden board

Peanut Butter Breakfast Bar Recipe

Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes
Servings: 12 bars
Calories: 379kcal
Author: Holly
Peanut butter breakfast bars are a convenient and delicious way to take breakfast on the go.


  • ¾ cup peanut butter
  • 1 cup corn syrup
  • 1 cup sugar
  • 4 cups grape nuts cereal


  • Prepare a 13x9" pan sprayed with cooking spray.
  • Mix the first 3 ingredients together in a microwave safe bowl. Microwave on high for 2 minutes or until boiling, stirring at 1 minute intervals.
  • Add cereal and mix well. Press cereal mixture into prepared pan.
  • Allow to cool completely. Cut into bars and wrap each with plastic wrap to keep fresh.
  • Store in tightly covered container at room temp.


You can add dried fruit to these as well!


Calories: 379kcal | Carbohydrates: 73g | Protein: 9g | Fat: 9g | Saturated Fat: 2g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 4g | Trans Fat: 1g | Sodium: 288mg | Potassium: 260mg | Fiber: 4g | Sugar: 45g | Vitamin A: 684IU | Calcium: 26mg | Iron: 15mg