Sweet Peach Muffins with Brown Sugar Walnut Streusel

Bahan-bahan (24 porsi)

• 2 cups all-purpose flour
• 1 cup granulated white sugar
• 2 teaspoon ground cinnamon
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• ½ teaspoon ground allspice
• ½ teaspoon salt
• 1½ cups sour cream
• 3 large eggs
• 3 tablespoons unsalted butter, (melted)
• 1 tablespoon vanilla extract
• 1½ cups peeled, pitted, chopped fresh peaches
• 1½ cups coarsely chopped walnuts
• ⅓ cup all-purpose flour
• ⅓ cup firmly packed light brown sugar
• ½ teaspoon ground cinnamon
• 3 tablespoons unsalted butter, (softened)