"I serve this delicious entree each St. Patrick's Day, even though my family is Dutch, not Irish. The tender meat is topped with a simple, tangy glaze that is so tasty. Leftovers make excellent Reuben sandwiches. —Perlene Hoekema, Lynden, Washington..."
INGREDIENTS
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1 corned beef brisket with spice packet (3 to 4 pounds), trimmed
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1 medium onion, sliced
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1 celery rib, sliced
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1/4 cup butter, cubed
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1 cup packed brown sugar
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2/3 cup ketchup
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1/3 cup white vinegar
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2 tablespoons prepared mustard
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2 teaspoons prepared horseradish