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Brown Butter Salted Butterscotch Brownies

Close-up of fudgy homemade butterscotch brownies topped with caramel pieces and flaky sea salt.

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Make chewy and soft homemade butterscotch brownies using brown butter for a rich, modern take on an old-fashioned treat.

Ingredients

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  • 1 cup (2 sticks) unsalted butter
  • 1 1/2 cups packed light brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs, room temperature
  • 1 tablespoon vanilla extract
  • 1 1/4 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 cup butterscotch chips
  • 1/2 teaspoon flaky sea salt, for topping

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×9 inch baking pan with parchment paper, leaving an overhang on two sides for easy removal.
  2. Melt the butter in a light-colored saucepan over medium heat. Continue cooking, stirring often, until the butter foams, then subsides, and brown bits form at the bottom, giving off a nutty aroma. This takes about 5 to 8 minutes. Remove from heat immediately and pour the brown butter into a large heatproof bowl.
  3. Whisk the brown sugar and granulated sugar into the warm brown butter until fully combined. Let this mixture cool for 10 minutes.
  4. Whisk in the eggs one at a time until the batter is smooth. Stir in the vanilla extract.
  5. In a separate small bowl, whisk together the flour, baking powder, and salt.
  6. Gradually add the dry ingredients to the wet ingredients, mixing only until just combined. Do not overmix.
  7. Fold in the butterscotch chips.
  8. Spread the batter evenly into the prepared baking pan.
  9. Bake for 28 to 32 minutes. The edges should look set, and a toothpick inserted near the center should come out with moist, fudgy crumbs attached, not wet batter.
  10. Let the brownies cool completely in the pan on a wire rack before lifting them out using the parchment overhang.
  11. Sprinkle the top evenly with flaky sea salt before slicing into squares.

Notes

  • Browning the butter is key to developing the deep, complex flavor in these brownies. Watch it closely to prevent burning.
  • For the chewiest results, do not overbake. The center should remain slightly underdone when you remove them from the oven.
  • You can substitute half of the butterscotch chips with good quality white chocolate chips if you prefer a different flavor balance.

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