The 20 bars are to be 20 individual graham cracker rectangles. They can be honey or chocolate flavor.
Line a jelly roll pan (10x15 inch) with foil; arrange graham crackers in the pan in a single layer. Combine butter and sugar in a heavy medium saucepan; bring to a boil over medium heat, stirring occasionally. Boil for 2 minutes; stir in vanilla and chopped pecans. Pour the hot mixture over the crackers and spread evenly. Bake 10 minutes at 350 degrees F. Remove at once from pan to flat surface to cool. When cool, break into smaller pieces.
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