Heath bars are manufactured by the Hershey Company. It was first invented by a pair of brothers Bayard and Everett (last name of Heath, if you can believe), who debuted their candy bar in 1928.

Preheat the oven to 350F. Line a muffin tray with cupcake liners and set aside. Make the cake mix according to the box instructions. Stir in 1 cup of English toffee pieces. Scoop the cupcake ...