Melt butter in saucepan. Add brown sugar. Boil ... lukewarm. Gradually add sugar. Beat until thick enough to spread. Add a little hot water, if needed.
Bake as directed; cool 5 minutes. 1/2 jar Butter Caramel Fudge Topping 8 oz. Cool ... bits Poke holes in cake with handle of rubber ... and Heath bits. Enjoy!