Ingredients
Method
Brown the Butter & Whisk
- Melt butter in a medium saucepan over medium heat. Swirl occasionally for 5-6 minutes as it foams, crackles, and turns deep golden-amber with nutty toasted milk solids at the bottom. Pour into a large mixing bowl and cool for 10 minutes.
- Add dark brown sugar to the warm brown butter and whisk vigorously for 1 minute. Whisk in eggs, egg yolk, and vanilla extract for a full 2 minutes until glossy, pale, and thick (this creates the shiny crackly crust!).
Fold & Bake
- Fold in flour, cinnamon, baking powder, and salt with a rubber spatula just until combined. Gently fold in 1 cup of toasted pecans and white chocolate chips.
- Spread thick batter evenly into an 8x8 or 9x9-inch baking pan lined with parchment paper. Scatter remaining pecans on top and sprinkle with cinnamon sugar.
- Bake at 350°F (175°C) for 24-26 minutes until edges are golden and a toothpick inserted in the center comes out with moist, fudgy crumbs (do not overbake!).
- Cool completely in pan before slicing into neat squares, finishing with a pinch of flaky sea salt.
