No-Bake Chocolate Peanut Butter Bars

1 cup margarine (I used only 1/2 cup butter)
1/2 cup brown sugar
1 teaspoon vanilla
3 cups gluten free oats
1 cup chocolate chips
1/2 cup peanut butter

Grease a 9 inch baking pan.  Melt margarine in a large saucepan over medium heat.  Add sugar, mix well.  Stir in oats.  Cook over low heat 2-3 minutes.  Press half of the mixture in the prepared pan. 

Melt chocolate chips in the microwave.  Stir in peanut butter and pour the mixture over the oats in the pan.  Spread evenly.  Crumble remaining oat mixture over the chocolate layer.  Cover and refrigerate 2 hrs over overnight to harden.

recipe courtesy of http://freelifeglutenfree.blogspot.com/2011/03/no-bake-chocolate-peanut-butter-bars.html