INGREDIENTS
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For the cake
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1 cup all-purpose flour
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3/4 cup granulated sugar
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1 1/2 teaspoons baking powder
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Pinch of salt
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4 eggs, separated, at room temperature
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1/4 cup vegetable oil
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2 tablespoons water
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1/4 teaspoon pure vanilla extract
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1/2 teaspoon cream of tartar
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For the tres leches
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1 cup heavy cream
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1 (12-ounce) can evaporated milk
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1 teaspoon pure vanilla extract
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Pinch of salt
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1 (14-ounce) can sweetened condensed milk
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1/2 cup dark rum (optional but highly recommended)
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For the filling
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1 1/3 cups heavy cream
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1/4 cup confectioner's sugar
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1/2 teaspoon pure vanilla extract, or 1/2 vanilla bean, scraped
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1 to 2 cups coarsely chopped or sliced fresh fruit (strawberries, mangoes, and/or canned peaches are commonly used)