"Pumpkin Texas Sheet Cake with Buttermilk Frosting - Moist pumpkin spice cake slathered with tangy frosting. This casual desserts is a must for the holidays!..."
INGREDIENTS
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3 cups all-purpose flour (+ extra for pan)
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1 1/2 tablespoons pumpkin pie spice
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1 1/2 teaspoons baking powder
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1 1/2 teaspoons baking soda
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1 1/2 teaspoons salt
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1 1/2 cups granulated sugar
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1 1/2 cups light brown sugar
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1 1/2 cups softened unsalted butter
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6 eggs, (room temperature)
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28 ounces canned pumpkin puree ((not pumpkin pie filling))
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1 cup unsalted butter, (softened)
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1/2 cup whole buttermilk
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1 teaspoon vanilla extract
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1/2 teaspoon salt
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5+ cups powdered sugar