Blueberry Muffins - cooking recipe

Ingredients

2 2/3 c. flour
1/2 c. sugar
2 1/4 tsp. baking powder
1/4 tsp. baking soda
1 c. buttermilk*
2 eggs, beaten
1/2 c. margarine, melted
1 c. blueberries

Preparation

*I use powdered buttermilk and whole milk instead of water. Powdered buttermilk can be added to dry ingredients.