RoadPro’s 12-volt Simmer-n-Serve slow cooker holds 1.5 quarts and has a removable crock that is dishwasher safe. The slow cooker features a spill resistant design for cooking on the road that is a lot less messy, the company says. The power switch on a fused six-foot cord makes using this portable 12-volt slow cooker easy to take almost anywhere. Available at 12volt-travel.com.