There are few combinations as perfect as chocolate and peanut butter. To really make this decadent and over the top you could cut up some peanut butter cups to mix into the batter before adding the chocolate chips on top.
Peanut Butter and Chocolate Marble Bars
1/2 cup peanut butter
1/3 cup butter
3/4 cup brown sugar
3/4 cup white sugar
2 eggs
1 cup flour
1 teaspoon baking powder
1/4 teaspoon salt
2 cups chocolate chips
2 teaspoons vanilla
Cream peanut butter, butter and sugar; add eggs. Add dry ingredients and vanilla, mixing well. Spread in a 13×9″ pan. Sprinkle chips over top.
Bake for 5 minutes at 350 degrees. Remove …read more

I’m not usually a huge fan of peppermint unless it’s paired with chocolate, and one of my favorite things to make this time of year are peppermint frosted brownies:
Brownies:
1 1/4 c butter or margarine
6 (1-ounce each) squares unsweetened baking chocolate
3 c granulated sugar
4 large eggs, slightly beaten
1/2 tsp peppermint extract
2 1/2 c all-purpose flour
1/2 tsp salt
Frosting:
1 c powdered sugar
2 Tb butter or margarine, softened
1/8 tsp peppermint extract
1 to 2 Tb milk
1 drop red food color, if desired
Heat oven to 350°F. Grease bottom only of 13 x 9-inch baking pan. Set aside.
Melt 1 1/4 cups butter and chocolate in 3-quart saucepan …read more