Preparing a spiral ham in a Crock-Pot involves layering the ingredients in the pot and letting them cook slowly. Recipes call for cooking the spiral ham between four and six hours.
A basic recipe for preparing a cooked, boneless ham in the slow cooker calls for a 5- or 6-pound ham, 1/2 cup honey Dijon mustard, 1/2 cup real maple syrup, and 1/2 cup packed brown sugar. Spray the Crock-Pot liner with cooking spray. Make cuts in a diamond pattern over the top of the ham. Place the ham in the Crock-Pot.
Combine the mustard, brown sugar and syrup in a small bowl. Pour this mixture over the ham, and cover the Crock-Pot. Cook the ham on the low heat setting until a meat thermometer registers an internal temperature of 140 degrees Fahrenheit. Let the ham stand on the cutting board for 15 minutes before slicing.
Traditional recipes for spiral ham call for pineapple. Achieve the flavor of traditional roasted ham with pineapple by adding a can of pineapple chunks with the juice to the Crock-Pot. This recipe also calls for 1 cup of ginger ale. It omits the syrup and mustard, but it calls for 2 cups of brown sugar.