"This Mini Coffee Cake is light and fluffy with an insane buttery, crunchy, crumbly streusel layer over the top. It serves four, but you might not want to share…..."
INGREDIENTS
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7x5-inch baking dish
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Handheld electric mixer (optional but helpful)
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3 tablespoons (36g) brown sugar
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3 tablespoons (36g) granulated sugar
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1/2 teaspoon cinnamon
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1/8 teaspoon nutmeg (optional)
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1/8 teaspoon salt
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4 tablespoons (2oz) unsalted butter (melted)
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1/2 cup + 1 tablespoon (68g) all-purpose flour (measured by weight or using the spoon and sweep method* )
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1/2 cup + 2 tablespoons (75g) all-purpose flour (measured by weight or using the spoon and sweep method)
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1/2 teaspoon + 1/8 teaspoon baking powder
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1/8 teaspoon salt
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2 tablespoons (1oz) unsalted butter (softened)
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1/4 cup (50g) granulated sugar
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1 large egg (room temperature)
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1/2 teaspoon vanilla extract
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2 tablespoons sour cream
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2 tablespoons milk