Thoroughly combine oats, sugar, and salt. Set aside
In a small saucepan, melt margarine. Add to oat mixture and mix well.
Firmly pack 1/2 of mixture into a 11x7 inch baking pan. Melt creamy peanut butter and spread evenly over oats. Cover with remaining oat mixture, packing gently.
Bake at 350º for 25 -30 minutes.
Let cool almost completely before cutting.
Makes 18 squaresRecipe submitted by Norma on 8/27/00