👩🍳 Instructions
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1
Preheat your oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper, leaving an overhang on the sides. Lightly grease the parchment paper.
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2
For the Brownie Layer: In a medium bowl, combine the melted butter and 1 cup granulated sugar. Whisk until smooth and glossy.
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3
Stir in 2 large eggs and 1 tsp vanilla extract, whisking until well combined and smooth.
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4
Add 1/2 cup all-purpose flour, 1/2 cup unsweetened cocoa powder, and 1/4 tsp salt. Fold gently with a spatula until just combined. Set aside.
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5
For the Blondie Layer: In a separate medium bowl, combine the melted butter, 1 cup packed brown sugar, and 1/4 cup granulated sugar. Whisk vigorously until the sugars are dissolved and the mixture is smooth and syrupy.
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6
Stir in 1 large egg and 1 tsp vanilla extract, whisking until light and fluffy.
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7
Add 1 1/2 cups all-purpose flour, 1 tsp baking powder, and 1/4 tsp salt. Fold gently with a spatula until just combined. The batter will be thick.
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8
Dollop spoonfuls of brownie batter evenly across the bottom of the prepared pan. Follow with dollops of blondie batter, scattering it over the brownie layer.
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9
Take a butter knife or skewer and gently swirl it through both layers a few times to create a marbled effect. Do not overmix the layers.
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10
Bake for 30-35 minutes, or until the edges are set and a toothpick inserted into the center (avoiding a chocolate puddle) comes out with moist crumbs. The center may still look slightly soft.
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11
Cool completely in the pan on a wire rack before lifting out with the parchment sling and cutting into squares. This allows them to set properly for the best texture.
💡 Notes
For extra indulgence, add 1/2 cup chocolate chips or chopped nuts to either batter. Store cooled brownie blondies in an airtight container at room temperature for up to 4 days, or freeze for longer storage. Serve with a scoop of vanilla ice cream for a warm treat.
🥗 Nutrition (per serving)
Calories
350 kcal
Protein
4g
Total Fat
18g
Saturated Fat
11g
Carbs
45g
Fiber
1g
Sugar
32g
Sodium
150mg
Cholesterol
60mg