Low Fat Whole Wheat Blueberry Muffins

Ingredients (9)

• 1 cup unsweetened applesauce
• 2 cups 100% whole wheat pastry flour
• 1/2 cup raw sugar
• 1 tsp baking soda
• 1/2 tsp salt
• 1 1/2 cups blueberries
• 1 large egg
• 1 tsp vanilla
• 2 tbsp butter