""An old fashioned lemon cake recipe. It is usually made up of 3 to 6 white cake layers with a cooked lemon filling between the layers and iced in Seven Minute Frosting."..."
INGREDIENTS
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1 (18.25 ounce) package white cake mix
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1 1/4 cups white sugar
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5 tablespoons cornstarch
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3 egg yolks
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2 tablespoons grated lemon zest
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3 lemons, juiced
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2 cups boiling water
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3 tablespoons butter