Crumb Topping:

• 1/3 cup all-purpose flour
• 1/4 cup brown sugar, granulated sugar, or blonde coconut sugar
• 1/4 cup rolled oats (use gluten-free oats if needed)
• 1 teaspoon cinnamon
• 3 tablespoons solid coconut oil or room temperature butter

Apple Muffins: (gluten-free option below)

• 1 1/2 cups all-purpose flour
• 3/4 cup granulated sugar or blonde coconut sugar
• 1/2 cup rolled oats
• 2 teaspoons cinnamon
• 1 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2/3 cup milk of choice
• 1 teaspoon vinegar (distilled white or apple cider)
• 1/3 cup oil of choice
• 1 1/2 cups cored and finely chopped apple (about 1 large or 2 medium apples)

Gluten-Free Apple Muffins:

• 1 cup gluten-free measure for measure flour I used King Arthur Measure for Measure Gluten-Free Flour
• 1/2 cup almond flour
• 1/2 cup gluten-free rolled oats
• 3/4 cup granulated sugar or blonde coconut sugar
• 2 teaspoons cinnamon
• 1 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup milk of choice
• 1 teaspoon vinegar (distilled white or apple cider)
• 3 tablespoons oil of choice
• 1 1/2 cups cored and finely chopped apple (about 1 large or 2 medium apples)