The following recipe is one that I got from my grandmother years ago and to this day, I make it all of the time!
Grandma's Homemade Blueberry Muffins Recipe
1/2 cup butter, softened
1 1/4 cups granulated sugar
2 large eggs
2 cups all purpose flour
2 tsp. baking powder
1/2 tsp. salt
1/2 cup milk
2 1/2 cups fresh or frozen blueberries
* If using frozen: thaw and drain away the liquid
In a large mixing bowl, cream together the butter and granulated sugar until creamy. Add in the large eggs and beat until combined. Sift together the all purpose flour, baking powder and salt. Add the sifted ingredients to the batter, alternating with the milk. Fold in the fresh or thawed blueberries until well combined.
Preheat oven to 350 degrees F. Fill a greased muffin tin 2/3 full or use paper lined muffin cups. Sprinkle a little extra sugar on top. Bake for 14 to 17 minutes or until done.