"A cake with a meringue? Though not unheard of, this one is definitely a flight of fancy, a cakey version of Key lime pie...."
INGREDIENTS
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1/2 cup all-purpose flour
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1/3 cup whole-wheat pastry flour
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1/4 teaspoon salt
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4 large eggs, at room temperature (see Cake-Baking Tips)
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2/3 cup sugar
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1 teaspoon vanilla extract
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1 teaspoon freshly grated lime zest, preferably Key lime (see Ingredient notes)
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3 tablespoons almond oil, or canola oil
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1 14-ounce can nonfat sweetened condensed milk, (not evaporated milk)
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1/3 cup lime juice, preferably Key lime
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1 teaspoon freshly grated lime zest, preferably Key lime
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2 large egg whites, at room temperature, or equivalent dried egg whites, reconstituted according to package directions (see Ingredient notes)
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1/4 cup sugar