INGREDIENTS
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1/4 cup all-purpose flour
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1 1/2 cups milk
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2 teaspoons prepared mustard
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1 teaspoon instant minced onion
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1 (10-3/4-ounce) can Cheddar cheese soup, undiluted
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1 (10-ounce) block sharp Cheddar cheese, shredded (see Notes)
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1 (8-ounce) package pasteurized prepared cheese product, cubed
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1 (8-ounce) package elbow macaroni, uncooked
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1 1/2 cups cubed cooked ham (optional)