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Fudgy Kit Kat Brownies

Two fudgy, dark chocolate Kit Kat Brownies stacked on top of each other, showing the crispy wafer filling inside.

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Make rich, fudgy brownies featuring layers of crunchy Kit Kat candy bars baked right in.

Ingredients

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  • 1 cup (2 sticks) unsalted butter
  • 2 cups granulated sugar
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 3/4 cup unsweetened cocoa powder
  • 1 cup all-purpose flour
  • 1/2 teaspoon salt
  • 1 cup chocolate chips
  • 12 full-size Kit Kat bars, unwrapped

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and line a 9×13 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
  2. In a medium saucepan over low heat, melt the butter. Remove from heat and stir in the sugar until combined.
  3. Whisk in the eggs one at a time until fully incorporated. Stir in the vanilla extract.
  4. In a separate bowl, whisk together the cocoa powder, flour, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
  5. Fold in the chocolate chips.
  6. Pour half of the brownie batter into the prepared pan and spread evenly.
  7. Arrange 8 of the Kit Kat bars in a single layer over the batter. You can leave them whole or gently break them in half.
  8. Pour the remaining batter over the Kit Kats, spreading carefully to cover them.
  9. Place the remaining 4 Kit Kat bars on top of the batter. You can press them slightly into the surface.
  10. Bake for 30 to 35 minutes. A toothpick inserted near the edge should come out with moist crumbs, not wet batter. The center should still look slightly soft for a fudgy texture.
  11. Let the brownies cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang.
  12. Cut into squares.

Notes

  • For extra fudginess, chill the batter for 30 minutes before pouring it into the pan.
  • If you prefer a cleaner cut, chill the finished brownies for at least 2 hours before slicing.
  • You can chop some Kit Kats to mix into the batter instead of layering them all on top.

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