No-Bake Chocolate Peanut Butter Bars

0 Line an 9″x9″ pan with parchment paper. (This will make the bars easier to lift out when chilled.)
1 Crush the graham crackers until they form a fine sandy texture. This is easiest to do in a food processor, but you could also put them in a plastic bag and crush them with a rolling pin.
2 Melt the butter in the microwave in 10 to 15 second increments. Stir in vanilla extract and salt.
3 Combine butter mixture, 2 cups of peanut butter, graham cracker crumbs and powdered sugar. Stir well.
4 Spread peanut butter / graham cracker mixture in pan. Refrigerate for 30 minutes until firm.
5 When base is firm, melt 2 Tablespoons peanut butter with chopped chocolate until smooth and creamy, stirring every 15 seconds or so.
6 Pour melted chocolate over base. Refrigerate until firm, 1 to 2 hours (see note below).
7 Slice into bars and serve!