Sour Cream Blueberry Muffins

By lutzflcat

4.64 / 5

25min

20min

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cooking spray
½ cup all-purpose flour
¼ cup brown sugar
½ teaspoon ground cinnamon
¼ teaspoon salt
¼ cup butter softened
2 cups all-purpose flour
3 teaspoons baking powder
1 teaspoon cinnamon
¼ teaspoon salt
2 large eggs
½ cup granulated sugar
½ cup brown sugar
1 cup sour cream
½ cup vegetable oil
1 teaspoon vanilla extract
2 cups blueberries
1 tablespoon all-purpose flour