Whisk together all ingredients except ham. (Or blend if you prefer a smooth glaze).
Place ham in crock pot. Slowly pour glaze over ham, making sure to get some between each spiral slice. Lift ham to get glaze underneath as well.
Cook on low for 2 - 4 hours, until heated through.
INSTANT POT VARIATION:
You will need either an 8 quart instant pot or smaller ham (4 - 6 pounds).
Pour 1.5 cups water (in 8 quart) or 1 cup water (in 6 quart) in the inner liner of the pot. Place a cake pan (or create a foil bowl) on top of the trivet.
Slowly pour glaze over ham, making sure to get some between each spiral slice. Lift ham to get glaze underneath as well.
Cook on manual (high pressure) for 1.5 minutes per pound, then allow a natural pressure release for 12 minutes.
Video
Notes
Cook time will depend on the size and shape of your ham, as well as the temperature at which your slow cooker runs - I find ours is typically perfect around the three hour mark. Calories are automatically generated. For best results calculate based on your exact ingredients.