Banana Chocolate Chip Muffins

This recipe comes from the Lifetime TV show Cook Yourself Thin.
Can you tell Trevor and I like chocolate chip muffins? 2 of my first 6 recipes are chocolate chip muffins..(Not to mention I had a c.c. muffin flop in there that I chose not to post haha)

Both these and the zucchini muffins I put on here earlier are winners. Of course I modified this recipe b/c there were WAAAY too few chocolate chips in the recipe..I guess that's why it was on a Cook Yourself Thin show :/...It only called for a total of 2 T chocolate chips to sprinkle on the tops of the muffins. Are you kidding me? So I chose to put dark chocolate chips in the batter and then sprinkled some mini chocolate chips on top. Muuuch better.
Ingredients:
1 c all-purp flour
1 c whole wheat flour
1/2 rolled oats
2 tsp cinnamon
2 tsp baking powder
1 tsp baking soda
1/2 tsp salt
1 ripe banana, mashed
1/4 cup chopped walnuts
1/2 c brown sugar, packed
2 T vegetable oil
2 large eggs
1 1/4 c reduced fat buttermilk (I didn't have any so used 1 T vinegar+skim milk instead)
1 tsp vanilla
3/4 c chocolate chips (can sprinkle w/mini chips if desired)
Directions:
1. Preheat oven to 400
2. In large bowl, combine flours, oats, cinnamon, baking powder, baking soda, salt + mashed banana. Blend on low 2 mins
3. Add walnuts, brown sugar, oil, eggs, buttermilk and stir to combine.
4. Add vanilla and stir.
5. Use ice cream scoop to portion the muffins out into the tin. Bake for 15 mins. Remove and let cool.