INGREDIENTS
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For Cake Layers:
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1 cup (227 g) unsalted butter, softened
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1 cup (200 g) white granulated sugar
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8 oz (227 g) mascarpone cheese, softened
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1 tsp vanilla extract
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1 cup (237 ml) milk
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6 large egg whites, or 4 whole eggs
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2 cups (250 g) all-purpose flour
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4 tsp (16 g) baking powder
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1/4 tsp salt
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lemon zest from 2 large lemons
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1 cup fresh berries
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1 tablespoon cornstarch
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For Frosting:
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24 oz (680 g) mascarpone cheese, softened
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1 tsp vanilla extract
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3 cups (375 g) confectioner's sugar
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1 cup (236 ml) heavy cream, chilled
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zest from 1 large lemon
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3 cups fresh berries, for filling and garnish