Chocolate oat bars

1. grease 9 inch baking panmelt butter in sauce panand add brown sugar and vanilla.mix in the oats and blend in for 3 minutes until well blended.press half the mixture into bottom of pan. Melt the chocolate and peanut butteron low heat in sauce panpour the chocolate mixture over the crustand spread evenly with a spoon.crumble the remaining oat mixtureover the chocolate and pressgently refrigerate over night and cut in to bars