1/4 c. butter (room temperature)
1 c. sugar
2 eggs
1/2 tsp. vanilla
1 1/2 to 2 c. flour
2 tsp. baking powder
1/2 c. milk
2 c. blueberries
1/2 c. walnuts (optional)

Heat oven to 375°F. In large bowl, cream butter and sugar. Add eggs and vanilla; beat well. In separate small bowl, combine flour and baking powder. Add to butter mixture with milk alternately. Stir until moist. Fold in blueberries and walnuts. Fill greased or papered muffin tins about 2/3 full.

Bake for 20 minutes.

Makes 16 muffins.