Peanut-butter Banana Muffins

1 c. peanut butter
2-3 bananas
2 eggs
1 tsp. vanilla
2 T. honey
1/2 tsp. baking soda
1 tsp. vinegar
1/4 c. chocolate chips, opt.

Blend all ingredients together. Pour batter into muffin tin. Bake at 400 degrees for 15 mins, or 10 mins for mini-muffins.