Vanilla And Cinnamon Crumb Cake

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Steps

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Preheat the oven to 350 degrees.

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Line a 10-inch springform pan with parchment , grease the bottom and sides and set aside.

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To make the crumb top , in the bowl of a heavy-duty electric mixer fitted with the paddle attachment , combine the flour , sugar.

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And cinnamon.

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Cut in the vanilla and cold butter on low speed until coarse dry crumbs are formed.

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Pour into a small bowl and set aside.

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If not using immediately , refrigerate until needed.

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To make the cake batter , without cleaning the mixing bowl , cream the butter and sugar on medium speed until light and fluffy , about 1 minute.

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Add the eggs , one at a time , and the vanilla extract and beat well on medium speed for 30 seconds.

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The mixture will be loose.

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Add the flour.

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Cinnamon , baking powder.

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Baking soda , and salt and beat on low speed for 15 seconds.

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Add the sour cream and beat on medium-high speed only until the lumps smooth out and the mixture looks fluffy , about 30 seconds on medium-high speed.

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Do not overbeat'.

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Ingredients

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cake flour, sugar, ground cinnamon, pure vanilla extract, unsalted butter, eggs, baking powder, baking soda, salt, sour cream