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Peanut Butter Cup Blondies

Peanut Butter Cup Blondies

Published October 13, 2026

Buttery brown-sugar blondies studded with chopped leftover peanut butter cups and chocolate candy.

Freeze the peanut butter cups for 10 minutes before chopping so they cut cleanly. Let the melted butter cool a few minutes so it doesn't melt the candy.

Keeps 4 days airtight and freezes well. Pull the pan when the center is just set; blondies firm up as they cool.

Cook time
42 min
Rating
…

Ingredients

Scale
Measurement units
  • ½ cup unsalted butter
  • 1 cup light brown sugar
  • 1 egg
  • 2 tsp vanilla extract
  • 1 ¼ cup all-purpose flour
  • ½ tsp baking powder
  • ½ tsp salt
  • ¾ cup chopped peanut butter cups for the batter
  • ¼ cup chopped peanut butter cups for the topping
  • ½ cup chopped chocolate candy

Instructions

Prep the pan and candy
Heat the oven to 350°F.
Line a 9-inch square pan with parchment, leaving an overhang.
Chop the peanut butter cups and chocolate candy into small pieces.
Equipment: 9-inch square baking pan, parchment paper
Mix the batter
Whisk melted, slightly cooled unsalted butter (½ cup) with light brown sugar (1 cup) until smooth.
Whisk in egg and vanilla extract (2 tsp).
Stir in all-purpose flour (1 ¼ cup), baking powder (½ tsp) and salt (½ tsp) until just combined.
Fold in chopped peanut butter cups for the batter (¾ cup) and chopped chocolate candy (½ cup).
Spread into the pan and scatter chopped peanut butter cups for the topping (¼ cup) on top.
Equipment: 9-inch square baking pan
Bake
Bake about 27 minutes, until golden and the center is just set.
Cool
Cool completely in the pan, then lift out and cut into 16 squares.
Equipment: 9-inch square baking pan

Tomorrow's Meal

Peanut Butter Cup Blondie Bread Pudding

Day-old blondies cubed and baked into a rich custard with chocolate and peanut butter swirls for an indulgent dessert

You'll need to pick up:

Eggs (3-4)Whole milk or cream (1.5 cups)Vanilla extractBrown sugar (2 tablespoons)Butter for greasing

Quick overview:

  1. 1.Cut day-old blondies into 1-inch cubes (you'll need about 4 cups)
  2. 2.Whisk together 3-4 eggs, 1.5 cups milk, 2 tablespoons brown sugar, and 1 teaspoon vanilla
  3. 3.Arrange blondie cubes in buttered 9x9 baking dish
  4. 4.Pour custard mixture over cubes, let soak 10 minutes
  5. 5.Bake at 350°F for 25-30 minutes until custard sets and top is lightly golden
  6. 6.Cool 10 minutes before serving; top with whipped cream if desired

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