I've never made this, but am sure that you don't have to use chunky peanut butter, if you don't like it.
I love the idea of graham crumbs!
1/3 cup chunky peanut butter
1/4 cup honey
1/2 teaspoon vanilla extract
1/3 cup nonfat dry milk powder
1/3 cup quick-cooking oats
2 tablespoons graham cracker crumbs
In a small bowl, combine the peanut butter, honey and vanilla. Stir in the milk powder, oats and graham cracker crumbs. Shape into 1-in. balls.
Cover and refrigerate until serving.