Brown Butter Walnut Chocolate Chip Blondies

Preheat oven to 350 degrees (F). Line an 8x8 baking pan (or loaf pan) with parchment paper and spray parchment lightly with non-stick spray, set aside.

Melt butter in a medium-sized skillet over medium heat. Continue cooking butter, stirring frequently, until it's a light amber color and smells slightly nutty. Remove from heat at once and cool for a few minutes before whisking in the brown sugar; beat until well combined. Add in the egg, beating until combined. Gently stir in the flour, baking powder, and cinnamon, being sure not to over mix. Fold in the chocolate chips and chopped walnuts.
Bake for 25-28 minutes, or until the edges are firm and golden and the center is just slightly wobbly. Sprinkle with sea salt. Cool in pan for at least 15 minutes before cutting.