Bananaberry Muffins

2 cups flour
2 tsp. baking powder
1/2 tsp. salt
1 c. sugar
1/3 c. butter at room temperature
2 eggs
1 c. mashed bananas
1 tsp. vanilla
1 c. fresh blueberries

preheat oven to 350.
mix dry ingredients together.
mix wet ingredients together.
combine everything, and fold 3/4 blueberries in.
fill muffin liners and top each muffin with remaining blueberries.
bake for about 20 minutes or until toothpick comes out clean.
serve while still warm with butter.