INGREDIENTS
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4 slices white bread, crusts removed, and torn into crumbs
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1-1/2 sticks unsalted butter, divided
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1 large ball of garlic
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Olive oil
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1 pound uncooked cavatappi pasta
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6 tablespoons all-purpose flour
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5 cups milk
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4-1/2 cups coarsely shredded cheddar cheese
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2 cups coarsely shredded gouda cheese
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1/2 cup grated Parmesan cheese
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1 tablespoon dijon mustard
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1 1/2 teaspoons salt
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1 teaspoon ground black pepper