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Best Raspberry Swirl Brownies

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Best Raspberry Swirl Brownies are rich, fudgy chocolate brownies swirled with sweet and tangy raspberry puree. The perfect combination of deep cocoa flavor and fruity brightness, they look stunning and taste even better.

  • Author: Julia
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Total Time: 1 hour 20 minutes
  • Yield: 9–16 brownies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

  • For the Brownie Batter:
  • 1/2 cup unsalted butter
  • 1 cup semi-sweet chocolate chips or chopped chocolate
  • 3/4 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup all-purpose flour
  • 2 tablespoons unsweetened cocoa powder
  • 1/4 teaspoon salt
  • For the Raspberry Swirl:
  • 1/2 cup fresh or frozen raspberries
  • 12 teaspoons sugar (optional, to taste)
  • 1 teaspoon lemon juice

Instructions

  1. Preheat the oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper.
  2. In a small saucepan or microwave-safe bowl, melt the butter and chocolate together until smooth. Let cool slightly.
  3. Stir in the sugar, then add the eggs and vanilla extract, mixing until glossy and well combined.
  4. In a separate bowl, whisk together the flour, cocoa powder, and salt. Gently fold into the wet ingredients until just combined.
  5. In a small bowl, mash or blend the raspberries with lemon juice and sugar (if using). Optional: strain to remove seeds.
  6. Pour the brownie batter into the prepared pan and smooth the top.
  7. Drop spoonfuls of the raspberry mixture over the batter and swirl gently with a knife or toothpick.
  8. Bake for 30–35 minutes, or until edges are set and a toothpick inserted into the center comes out with moist crumbs.
  9. Let the brownies cool completely in the pan before slicing for clean, defined swirls.

Notes

  • Use raspberry jam instead of fresh berries in a pinch—warm it slightly to swirl easily.
  • Swirl in cream cheese for a richer, cheesecake-like variation.
  • Add white chocolate chips for contrast and extra sweetness.
  • For a gluten-free version, substitute with a 1:1 gluten-free baking flour blend.
  • Cool fully before slicing and wipe knife between cuts for a clean look.

Nutrition