Delicious and Moist Banana, Walnut, and Cranberry Muffins

Ingredients

• 2 ripe bananas
• 1/2 cup unsalted butter, melted
• 1/2 cup granulated sugar
• 1/4 cup brown sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 1/2 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1/2 cup chopped walnuts
• 1/2 cup dried cranberries