These were moist and delicious. I added just a bit of ground nutmeg to the batter and used 1 cup of mashed cooked sweet potato instead of the canned sweet potato, very moist! See Baked Sweet Potato http://www.food.com/recipe/baked-sweet-potato-55678, you'll never prepare a better sweet potato than this! I did not add the pecans to the topping.
This is a great alternative to powdered sugar frosting and old stand by cake mix cake. It also would be good with cream cheese frosting.
Moist & delicious... I did have to cook the muffins an additional 5 minutes. I did not make the caramel sauce to go on top. The muffins were wonderful enough without it. Made for Newest Zaar Tag