INGREDIENTS
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9 large eggs (Only one will get used in the cake. The rest are just used for the shells.)
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1/2 C flour
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1/4 tsp baking powder
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1/8 tsp baking soda
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a pinch of salt
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1/2 C sugar
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1/4 C unsalted butter, room temperature
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1/2 tsp lemon extract
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1/4 C sour cream