INGREDIENTS
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12 oz. elbow macaroni noodles
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2 cups butter cracker crumbs (such as Ritz)
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3 cups shredded sharp cheddar cheese, divided
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6 tbsp. unsalted butter, melted
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1 (5.2 oz.) package Boursin garlic herb cheese
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2 tbsp. cold unsalted butter
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2 large eggs
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¾ cup milk
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¼ cup sour cream
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¼ tsp. salt
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Pinch red pepper flakes