Preheat oven to 350.
Melt butter in a sauce pan over medium heat until it becomes golden and it starts to smell nutty. Remove from heat and pour into medium sized bowl.
Stir in brown sugar, vanilla and eggs. Then add the flour and baking powder.
Add Skor bits and 1 cup of the milk chocolate chunks.
Spread into a 9 X 13 inch pan. Sprinkle with reserve ½ cup chocolate chunks.
Bake for 30 - 35 minutes until golden and set but still slightly gooey in the middle.