Apple Spice Muffin with Penuche Frosting

Ingredients:

Muffins:
1 1/2 C flour
1/2 tsp. cinnamon
1/4 tsp. nutmeg
1/4 tsp. salt
1 tsp. baking soda
1 apple, peeled & diced
1/2 C butter, softened
1/2 C brown sugar
1/2 C white sugar
1 C applesauce
1 tsp. vanilla

Frosting:
1/2 C butter
1 C brown sugar
1/4 C cream
1 3/4 C powdered sugar

Method:

1. Preheat oven to 350 degrees; grease a muffin (or cupcake) pan.
2. Mix flour, cinnamon, nutmeg, salt & baking soda together.
3. Add the diced apple and stir to coat all the pieces; set aside.
4. Cream the butter, brown sugar and white sugar together.
5. Mix in the applesauce and vanilla.
6. Slowly mix in the dry ingredients and stir until incorporated.
7. Evenly divide batter into the muffin pan. 
8. Bake 15-18 minutes; until golden brown around the edges. Allow to cool.
9. For the frosting, melt the butter then add the brown sugar.
10. Bring to a boil, lower heat and continue to cook & stir for two minutes. 
11. Pour in the cream and bring back up to a boil while stirring.
12. Remove from heat and cool until lukewarm.
13. Pour into a bowl and slowly whip in the powdered sugar. 
14. Frost the muffins.