Six Layer Toffee Torte
["2 2/3 c. all-purpose flour", "2 c. sugar", "1 c. margarine or butter (2 sticks), softened", "1 c. buttermilk", "3/4 c. unsweetened cocoa", "2 tsp. baking powder", "1 1/2 tsp. vanilla extract", "1/4 tsp. salt", "2 large eggs", "2 1/2 tsp. instant coffee powder or granules", "10 (1.4 oz.) chocolate covered toffee candy bars", "2 c. heavy or whipping cream", "3 Tbsp. light brown sugar"]
["Preheat oven to 350\u00b0.", "Grease and flour 3 (8-inch) round cake pans.", "In large bowl, measure first 9 ingredients.", "With mixer on low, beat until blended, constantly scraping bowl.", "Dissolve 2 teaspoons instant coffee in 1 cup boiling water.", "Add to bowl. Increase speed to medium; beat 2 minutes, occasionally scraping bowl.", "Spoon batter into pans evenly.", "Bake 25 to 30 minutes, until toothpick inserted into middle comes out clean.", "Invert onto wire rack to cool completely."]
["all-purpose", "sugar", "margarine", "buttermilk", "unsweetened cocoa", "baking powder", "vanilla extract", "salt", "eggs", "coffee", "chocolate covered toffee", "heavy", "light brown sugar"]