Place spiral-cut ham large end down in the bottom of your slow cooker.
Sprinkle ham with ½ cup of light brown sugar and 1 tsp. Pumpkin Pie Spice Mix.
Spoon 1 cup of peach preserves over the top of the ham. Place the additional ½ cup of preserves aside for later.
Cover and bake for 2–4 hours on low heat in your slow cooker. (Cook times will vary depending on the size of the ham). Then cover with a glass lid.
When done cooking, remove ham from cooker. Place on a serving platter. Add ¼ cup of ham juices from the bottom of the slow cooker to the remaining reserved ½ cup of peach preserves. Mix well and spoon over the top of the ham and serve immediately.