Low Fat Mixed Berry Whole Wheat Muffins

Ingredients (12)

• 1 1/2 cups pureed strawberries
• 1 cup 100% whole wheat pastry flour
• 1 cup all purpose flour
• 1/3 cup sugar
• 1 tsp baking soda
• 1/2 tsp salt
• 1/3 cup raspberries
• 1/3 cup blackberries
• 1/3 cups blueberries
• 1 large egg
• 1 tsp vanilla extract
• 2 tbsp melted unsalted butter