These thick, soft and chewy peanut butter blondies are packed with rich peanut butter flavor! Made in one bowl and topped with roasted peanuts and flaky sea salt, they're an easy, irresistible sweet-and-salty treat.
Preheat the oven to 350°F (175°C). Grease an 8-inch square baking pan and line with parchment paper, leaving an overhang for easy removal.
Melt the butter in a large microwave-safe bowl. Let cool for a few minutes.
Whisk in the peanut butter until smooth. Add the brown sugar and whisk until combined.
Add the eggs and vanilla, and whisk until the mixture is smooth and slightly lightened in color.
Add the flour, baking powder, and salt. Stir just until combined.
Transfer the batter to the prepared pan and spread evenly.
Sprinkle the chopped peanuts over the top.
Bake 28 to 34 minutes, or until the edges are set and lightly browned. A pick inserted into the center should come out with a few moist crumbs. Don’t over-bake. The center should look slightly underdone.
Place the pan on a wire rack. Immediately sprinkle lightly with flaky salt.
Cool completely before lifting from the pan and cutting into squares.
Notes
Peanut butter: Use conventional creamy peanut butter, such as Jif or Skippy, for the best consistency. Natural peanut butter that separates may produce different results.
Storage: Store in an airtight container at room temperature for up to 3 to 4 days.