Chocolate Peanut Butter Bars

Here is a really quick and easy recipe to make that combines two of the best flavors: chocolate and peanut butter. My mother made these squares, and they are really good! The bars start with a basic peanut butter base: just peanut butter, sugar, and egg. I'm sure you can recognize this recipe as the basic recipe for simple peanut butter cookies. Well, press this into a pan and top with some chocolate, and you're set!

Chocolate Peanut Butter Bars
1 cup smooth peanut butter
1/2 granulated (white) sugar
1 large egg
2/3 cup semi-sweet chocolate chips or
4 squares (1 ounce each) semi-sweet chocolate, broken into pieces
(using chips saves from having to chop)

In a mixing bowl, blend the peanut butter, sugar, and egg.
Press into an ungreased 7x11 or 8x11 inch pan, or into a 7x11 or 7x10 inch rectangle on an ungreased baking sheet.
Bake at 325◦F for 20 minutes.
Immediately sprinkle chocolate evenly over top, cover loosely with a sheet of aluminum foil. Let stand 3 minutes. 
Using a butter knife, spread the chocolate evenly over the bars.

The recipe says to cut the bars immediately, but the base crumbled and fell apart, so I would suggest cooling them at least slightly before cutting. Just don't refrigerate them before cutting, or the chocolate topping will become much too hard and crack.