I found this recipe recently. Hope you like it.
2 sticks softened butter
1 1/2 cups crunchy peanut butter
3 1/2 cups powdered sugar
1 cup graham cracker crumbs
2 cups semisweet chocolate chips
2 Tblsp. shortening
Step 1: Mixing
Put all ingredients in large bowl and mix.
Step 2: Rolling and Freezing
Roll into balls and put into freezer for about an hour.
Step 3: Chocolate & Dipping
Melt your Chocolate Chips at half power for 2 minutes then add your shortning.
Once you've made your chocolate, dip the peanut butter balls in the chocolate and place in a muffin pan. Be sure to use non-stick spray or have a very sticky mess later on.
Step 4: Finishing
Finally, put in fridge untill chocolate coating is hardened.