Delicious Blackberry Muffins

Details

Ingredients

• 2 cups all-purpose flour
• ⅔ cup white sugar
• 1 tablespoon baking powder
• ½ teaspoon salt
• 1 cup sour cream
• ½ cup butter, melted
• 2 eggs
• 1 teaspoon milk
• 1 teaspoon vanilla extract
• 11 ounces fresh blackberries