INGREDIENTS
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3 Tbsp butter, softened
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1 cup graham cracker crumbs
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2 lb cream cheese
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1 1/2 cups sugar
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3/4 cup milk
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4 eggs
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1 cup sour cream
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1/4 cup all-purpose flour
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1 Tbsp vanilla extract
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1 1/2 pints blackberries
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Zest and juice of 1 lemon