INGREDIENTS
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24 oz frozen or very ripe fresh strawberries, hulled (if frozen, thawed)
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1-2 tsp sugar (for fresh berries only)
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¼ cup milk, at room temperature
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6 large egg whites, room temperature
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1 Tbsp vanilla extract
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2¼ cup cake flour, sifted
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1¾ cup sugar
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4 tsp baking powder
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1 tsp salt
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12 Tbsp unsalted butter (1½ sticks), softened (not melted)
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pink or red food coloring, preferably the gel type (optional)