Butter Pecan Squares

Preheat the oven to 350°F and lightly grease an 8x8-inch baking pan.

Cream together the softened butter and packed light brown sugar in a large bowl until light and fluffy, about 2-3 minutes.

Beat in the egg and vanilla extract until well combined.

Stir in the all-purpose flour until just combined, then fold in 1 cup of the milk chocolate chips and 1/2 cup of the chopped pecans.

Spread the batter evenly into the prepared baking pan.

Bake for 20-25 minutes until a toothpick inserted in the center comes out clean or with just a few moist crumbs.

Remove from the oven and immediately sprinkle the remaining 1 cup chocolate chips and 1/4 cup pecans over the hot surface, allowing the residual heat to soften the chocolate.

Let cool in the pan for at least 15 minutes before cutting into squares and serving.