"When our crumbly-crisp topping meets the light, fluffy belly of this muffin, you'll swoon...."
INGREDIENTS
•
Cooking spray
•
1/3 cup old-fashioned rolled oats
•
1/4 cup packed brown sugar
•
1 tablespoon white whole-wheat flour
•
1/8 teaspoon ground cinnamon
•
3 tablespoons unsalted butter, melted and divided
•
9 ounces white whole-wheat flour (about 2 cups)
•
2 teaspoons baking powder
•
1/2 teaspoon salt
•
1/4 teaspoon baking soda
•
1 cup reduced-fat sour cream
•
2/3 cup granulated sugar
•
1/4 cup canola oil
•
1 teaspoon vanilla extract
•
1 large egg
•
1 1/2 cups fresh blueberries