Preheat oven to 350 degrees. Lay out one sleeve of Club crackers on a baking sheet. Meanwhile, heat butter, margarine and sugar in a medium saucepan until bubbly. Pour over the Club crackers. Press slivered almonds onto the tops of the crackers. Bake 8-10 minutes or until lightly browned. Once cool, add a drizzle of chocolate (optional) made from melted chocolate chips or chocolate almond bark.
Recipe by Frugal Bites at http://frugalbites.com/toffee-club-crackers/