INGREDIENTS
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½ cup unsalted butter, softened
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1 ½ cup plus 3 tablespoon granulated sugar
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3 large egg
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½ cup sour cream, at room temperature
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1 tsp vanilla extract
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1 ½ cup all-purpose flour
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3 Tbsp cornstarch
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½ tsp salt
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1 tsp baking soda
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1 lb strawberry, hulled and halved
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strawberry
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3 Tbsp granulated sugar
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1 Tbsp unsalted butter, softened
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3 Tbsp granulated sugar