1. Preheat oven to 400F. Place bread crumbs in a small dish. Dip chicken livers in melted butter, then in bread crumbs to coat. Place on a lightly greased baking sheet.
2. Bake livers for 15 to 20 minutes, until they are cooked through and ctispy on the outside.
3. Meanwhile, in a small saucepan, combine ketchup, brown sugar, mustard, and Worcestershire. Heat sauce to boiling, stirring to dissolve sugar. Serve the warm livers with the hot sauce for dipping.