This beautiful cake is great for company, and so easy to put together. It's a fool-proof moist cake! I have made it 24 hours ahead of time and it's still great, but the toffee pieces didn't stay very crunchy. I must thank my friend Libby and her mom for this recipe. I have also used 2 whole cake mixes to make a very tall cake. (1 whole cake mix, prepared, fits into my 9-inch pan.) But I did not double all the frosting ingredients, and it didn't have quite enough flavor. I recommend for a large cake, doubling everything.