In the 70s, vintage Crock-Pot Slow Cookers became popular, because a meal could be cooked for pennies a serving, and cuts of meat could be easily tenderized. Who knew how famous the small appliances would become?!
The 1970s Rival Crock-Plate multi-purpose cooker – from the people who made the famous Crock-Pot – had a high-fired stoneware plate that they said could do the work of several appliances.