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Valentine Peanut Butter Cookie Bars

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Delicious peanut butter cookie bars infused with chocolate and colorful Valentine M&M’s, perfect for sharing on Valentine’s Day.

Ingredients

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  • 1/2 cup unsalted butter, melted and slightly cooled
  • 3/4 cup creamy peanut butter
  • 1 cup light brown sugar, packed
  • 1/4 cup granulated sugar
  • 2 large eggs, at room temperature
  • 1 1/2 teaspoons pure vanilla extract
  • 1 1/4 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/2 teaspoon fine sea salt
  • 1 cup semi-sweet chocolate chips
  • 1/2 cup white chocolate chips
  • 3/4 to 1 cup Valentine-colored M&M’s
  • 2 tablespoons Valentine sprinkles (optional)
  • Flaky sea salt for sprinkling on top (optional)
  • 1/2 cup white chocolate chips (for drizzle)
  • 1 teaspoon neutral oil (for drizzle)

Instructions

  1. Prepare the pan by greasing it and lining with parchment paper.
  2. Preheat your oven to 350°F (175°C).
  3. Combine the melted butter and peanut butter in a large bowl.
  4. Mix the brown sugar and granulated sugar into the wet ingredients.
  5. Add the eggs one at a time, whisking after each addition, then mix in the vanilla.
  6. Whisk together the flour, baking powder, baking soda, and salt in a separate bowl.
  7. Combine the dry ingredients with the wet mixture until just blended.
  8. Fold in the chocolate chips until evenly distributed.
  9. Press the dough into the prepared baking pan.
  10. Add half to two-thirds of the M&M’s and sprinkles on top.
  11. Bake for about 18 to 24 minutes until lightly golden.
  12. Press remaining M&M’s onto the bars as soon as they come out of the oven.
  13. Cool completely on a cooling rack, about 1 to 1.5 hours.
  14. Drizzle with melted white chocolate, optional, then garnish with sprinkles.
  15. Slice into bars using the parchment to lift out of the pan.

Notes

Store bars in an airtight container at room temperature for 3-4 days or refrigerate for up to 1 week.

Nutrition

Find it online: https://ameliasweets.com/2026/05/08/valentine-peanut-butter-cookie-bars/

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