Slow Cooker Hot Reuben Spread I made this last year for my annual Oscar party and it was a hit. It tasted like a reuben sandwich; I had no leftovers. Plan to make it for a Superbowl party this weekend. Serve with little party rye bread - yummy. But I didn't do mine in a slow cooker; just in a saucepan on the stove, then put it in a serving dish... I would microwave it a little if it got too cold.