Apple Cinnamon Muffins

Ingredients (20)

• For the crumb topping:
• ½ cup all-purpose flour
• ¼ cup packed light brown sugar
• 1 tablespoon granulated sugar
• 1 teaspoon ground cinnamon
• 4 tablespoons butter,
• For the muffins:
• 2 cups all-purpose flour
• ½ cup packed light brown sugar
• ¼ cup granulated sugar
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 1 ½ teaspoons ground cinnamon
• ½ teaspoon salt
• ¼ teaspoon ground allspice
• ½ cup unsalted butter,
• ¾ cup buttermilk,
• 2 large eggs,
• 2 teaspoons pure vanilla extract
• 1 cup peeled and diced apples