Banana, White and Milk Chocolate Chip Muffins

This is quite a treat!  I had a few ripe bananas and just didn't want to make banana bread again.  My hubby and the kids suggested muffins.  It sounded perfect to me, so I went to work.  They came out so good, that in a matter of a few short hours they were ALL gone!  We just couldn't stop eating them!  Out of this batch, I made 12 regular sized and 24 mini-ones.  Enjoy!
-1/2 cup margarine, softened
-1/2 cup brown sugar
-4 medium ripe bananas, mashed
-1/4 cup milk
-1 tsp vanilla extract
-2 eggs
-2 cups flour
-1 tsp baking soda
-1 tsp baking powder
-1/4 tsp salt
-1/2 cup semi-sweet chocolate chips
-1/2 cup white chocolate chips
Preheated oven to 375 F.  Line muffin pans with paper cups or spray with PAM.
In a large bowl, mix margarine and brown sugar until nice and fluffy.  Add bananas, milk, vanilla and eggs.  Mix well.  Add the flour, baking soda, baking powder and salt.  Once well mixed, stir in the chocolate chips.  Fill prepared cups 2/3 full.
Bake in preheated oven for 20-25 minutes for the regular size and about 15 minutes for the mini-sized, or until toothpick comes out clean.  Cool for about 3 minutes, then remove from pan and enjoy!