Mulberry Muffins

Ingredients

• 1/2 cup all-purpose flour
• 3/4 cup granulated sugar
• 2 tsp baking powder
• 2 tbsp butter (melted)
• 4 tbsp butter (softened)
• 1/2 cup light brown sugar
• 2 eggs
• 1/2 cup sour cream
• 1 1/2 cups all-purpose flour
• 1/2 tsp baking soda
• 1/2 tsp salt
• 2 cups mulberries