Raspberry Swirl Brownies (Printable)

Fudgy chocolate squares swirled with tart raspberry puree for a perfect sweet-tart balance.

# What You'll Need:

→ Raspberry Swirl

01 - 1 cup fresh or frozen raspberries
02 - 2 tablespoons granulated sugar
03 - 1 teaspoon fresh lemon juice

→ Brownie Base

04 - 1/2 cup unsalted butter
05 - 4 oz bittersweet chocolate, chopped
06 - 1 cup granulated sugar
07 - 2 large eggs
08 - 1 teaspoon pure vanilla extract
09 - 1/2 cup all-purpose flour
10 - 1/4 cup unsweetened cocoa powder
11 - 1/4 teaspoon salt

# How To Make It:

01 - Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, allowing overhang for easy removal later.
02 - Combine raspberries, sugar, and lemon juice in a small saucepan. Cook over medium heat, stirring occasionally, until raspberries break down and mixture thickens, approximately 5 minutes. Press through a fine-mesh sieve to remove seeds, then set aside to cool.
03 - Place butter and chopped chocolate in a heatproof bowl set over a pan of simmering water. Stir until completely melted and smooth, then remove from heat and let cool slightly.
04 - Whisk sugar into the melted chocolate mixture. Add eggs one at a time, mixing thoroughly after each addition. Stir in vanilla extract.
05 - Sift flour, cocoa powder, and salt into the batter. Gently fold until just combined, taking care not to overmix.
06 - Pour batter into the prepared pan and smooth the surface. Drop spoonfuls of cooled raspberry puree over the batter. Use a knife or skewer to gently swirl the puree into the brownie mix, creating a marbled pattern.
07 - Bake for 30 to 35 minutes, until a toothpick inserted in the center emerges with a few moist crumbs.
08 - Allow to cool completely in the pan. Lift out using parchment overhang, then cut into 16 squares.

# Expert Tips:

01 -
  • The tangy raspberry cuts through the rich chocolate so nothing feels too heavy or sweet
  • These brownies have that perfect fudgy texture with a slightly crispy top layer
  • The swirling technique looks impressive but takes literally two minutes
  • They actually taste better the next day, if you can manage to save any
02 -
  • Don't skip the sieve step for the raspberry puree—seeds in brownies are an unwelcome surprise
  • Overbaking is the enemy here, check them at 30 minutes even if they look slightly underdone
  • The swirl looks most dramatic if you don't overmix the raspberry into the batter
03 -
  • Line your pan with parchment paper hanging over two opposite sides for effortless removal
  • Room temperature ingredients blend more smoothly and give you better texture
  • The raspberry puree can be made up to three days ahead and stored in the refrigerator

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