Being Creative with Apples Again

I know it sounds a lil odd, but apples and sour cream really do go together! I actually got the idea from this recipe from Pillsbury.com but made muffins instead of squares just cuz it's easier to share.
Ingredients: (8 muffins)

1 c all-purpose flour
1 c firmly packed brown sugar
¼ c (½ stick) margarine or butter, softened
½ c chopped nuts
½ tsp cinnamon
½ tsp baking soda
¼ tsp salt
½ c tainer sour cream
½ tsp vanilla
1 egg white
1 c finely chopped, peeled apples

Prep:

1. Preheat oven to 350°F. In large bowl, combine flour, brown sugar and margarine; beat at low speed until crumbly. Add cinnamon, baking soda, salt, sour cream, vanilla and egg; mix well. Stir in apples and nuts.

2. Spoon evenly into greased or lined muffin pan.

3. Bake for 25 to 30 minutes or until toothpick inserted in center comes out clean. Serve warm or cool.