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Fudgy Strawberry Brownies with Real Strawberry Swirl

Close-up of fudgy strawberry brownies stacked on a white plate, showing bright pink strawberry swirls inside.

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Make these fudgy strawberry brownies from scratch. They combine rich chocolate decadence with a sweet swirl made from real strawberries, resulting in moist, dense bars perfect for any occasion.

Ingredients

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  • 1 cup (2 sticks) unsalted butter, melted
  • 2 cups granulated sugar
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 1/2 teaspoon salt
  • 1/4 teaspoon baking powder
  • 1 cup fresh strawberries, finely chopped
  • 1/2 cup powdered sugar (for swirl)
  • 2 tablespoons milk (for swirl)
  • 1/4 teaspoon strawberry extract (optional, for swirl)

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×9 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. In a large bowl, whisk together the melted butter and granulated sugar until well combined.
  3. Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  4. In a separate bowl, whisk together the flour, cocoa powder, salt, and baking powder.
  5. Gradually add the dry ingredients to the wet ingredients, mixing only until just combined. Do not overmix; this keeps the brownies fudgy.
  6. Gently fold in the finely chopped fresh strawberries.
  7. Pour the batter into the prepared baking pan and spread evenly.
  8. Prepare the strawberry swirl: In a small bowl, whisk together the powdered sugar, milk, and strawberry extract (if using) until smooth.
  9. Drop small spoonfuls of the swirl mixture over the brownie batter. Use a knife or skewer to gently swirl the mixture into the batter to create a marbled effect.
  10. Bake for 30 to 35 minutes. The edges should look set, and a toothpick inserted near the center should come out with moist crumbs attached, not wet batter.
  11. Let the brownies cool completely in the pan before lifting them out using the parchment overhang.
  12. Cut into squares and serve. These are excellent served slightly warm or at room temperature.

Notes

  • For an extra decadent treat, you can top these brownies with a simple chocolate ganache or a cream cheese frosting after they cool.
  • If you want a more intense strawberry flavor in the swirl, you can reduce the milk slightly or use a small amount of strawberry puree instead of fresh chopped berries in the batter.
  • To achieve a truly fudgy texture, avoid overbaking. The center should still look slightly underdone when you remove them from the oven.

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