Blueberry Banana Muffins with Streusel Topping - A Sprinkle of Joy

Ingredients

• 2 cups flour
• 1 1/4 teasooon baking powder
• 1/2 teaspoon baking soda
• 2 bananas
• 3/4 cups sugar
• 1/3 cup canola oil
• 1 egg
• 2 teaspoons vanilla
• 1/2 cup milk
• 2 cups blueberries
• 1/8 cup brown sugar
• 1/4 cup sugar
• 1/2-3/4 cup flour
• 1/2 stick butter