Chocolate Chip and Walnut Blondies

1 stick unsalted butter, melted
1/2 cup packed light brown sugar
1/3 cup granulated sugar
1 egg
1 tsp. vanilla extract
1 cup flour
1 tsp. salt
1 cup semisweet chocolate chips
3/4 cups chopped walnuts

Preheat the oven to 350. Spray an 8 x 8 inch pan with cooking spray, and then lay a piece of foil across the bottom, allowing it to hang over the edges on two sides. Press the foil down into the corners of the pan.

After melting the butter, put a spoonful onto the foil and spread it around to completely grease the foil.

With a whisk, combine the remaining butter and the two sugars in a large bowl. Add the egg and vanilla extract and stir until smooth. Then add the flour and salt, and mix until combined and moistened. (Do not overbeat.) Add in half of the chocolate and walnuts and stir to combine.

Pour the batter into the pan and smooth it out with a spatula. Then top the blondies with the remaining chocolate and walnuts.

Bake at 350 for 40-45 minutes, until a toothpick comes out clean. Pick the foil up out of the pan and place the whole dessert on a wire cooling rack.