"Perfectly moist with bursts of sweet blueberries in every bite, these banana blueberry muffins are a delightful treat for breakfast or a midday snack...."
INGREDIENTS
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2 cups all-purpose flour (240g)
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1 teaspoon baking powder
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1 teaspoon baking soda
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1/2 teaspoon cinnamon
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1/2 teaspoon salt
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1/2 cup oil (or melted butter)
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1/2 cup granulated sugar
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1/4 cup light brown sugar
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1 large egg + 1 egg yolk, lightly beaten
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3 large ripe bananas, mashed (about 1 cup)
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1 teaspoon vanilla extract
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1/3 cup sour cream or plain Greek yogurt
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1 1/4 cups fresh or frozen blueberries (do not thaw)
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Coarse sugar, for topping, optional