Banana-Walnut Muffins

Ingredients (10)

• ✓ 1 ¼ cups walnuts, finely chopped
• + 2 cups all-purpose flour add to pantry
• + ¾ cup white sugar add to pantry
• + ¾ teaspoon baking soda add to pantry
• + ½ teaspoon salt add to pantry
• + 3 very ripe bananas, mashed add to pantry
• + 2 eggs, beaten add to pantry
• + 6 tablespoons unsalted butter, melted and cooled add to pantry
• + ¼ cup sour cream add to pantry
• + 1 teaspoon vanilla extract add to pantry