Bar cookies to use up Halloween candy 1.0

Bar cookies to use up Halloween candy
1 cup butter melted and cooled
1 cup brown sugar
1/2 cup white sugar
2 eggs
1 1/2 teaspoons vanilla
2 cups flour
1 1/2 teaspoons salt
Reese's Peanut Butter cups I used 7 because that's all I had. Original recipe called for 8. Chill the candy in the freezer and then chop finely.

Preheat oven to 250 degrees
Brush 8-inch square baking pan with butter.
Line pan with parchment paper, leaving a 2-inch overhang on sides.
Butter the paper
Mix together butter and sugars.
Add eggs and vanilla
Add flour and salt; stir just until combined.
Transfer batter to prepared pan and smooth the top.
Arrange chopped peanut butter cups evening on top of dough.
Bake until top of cake is golden brown and toothpick inserted in center comes out clean, approximately 45 minutes.
Set pan on a wire rack and let cool completely.
Using parchment overhang, life cake from pan and transfer to cutting board.
Cut into squares.