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5 from 4 votes

Peanut Butter Oat Bars {British Flapjacks}

This is a peanut butter twist on the original British flapjack, chewy deliciousness in every bite.
Course Dessert
Cuisine American
Keyword flapjack recipes, oat bar recipes, peanut butter oat bar
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 12 servings
Calories 430kcal
Author Erren Hart of Erren's Kitchen


  • cup brown sugar
  • 1 cup butter
  • 4 tablespoons golden syrup
  • ​½ cup peanut butter
  • 2 tablespoons honey
  • cups rolled oats
  • 4 ounces semi-sweet chocolate


  • Preheat oven to 350F
  • Melt the brown sugar, butter, and golden syrup until fluid. Mix in the peanut butter and honey until combined. Add the oats until combined.
  • Add to a 9 inch round pan (or 9-inch square pan) bake 40-45 minutes or until golden brown.
  • While the flapjacks cool, melt the chocolate in a microwave on high heat in 30-second intervals until melted.
  • Once cooled, drizzle the flapjacks with the melted chocolate and leave to set before serving.


Calories: 430kcal | Carbohydrates: 44g | Protein: 6g | Fat: 26g | Saturated Fat: 13g | Cholesterol: 41mg | Sodium: 190mg | Potassium: 235mg | Fiber: 3g | Sugar: 25g | Vitamin A: 475IU | Calcium: 38mg | Iron: 2mg