Prepare spiral ham according to package directions. I serve mine room temperature.

For glaze/sauce:

Combine brown sugar and water in small saucepan and heat over medium heat until brown sugar is dissolved. Heat until it reaches a low boil, approx. 5 minutes.

Stir in mustard and simmer for 2-3 minutes.

Stir in butter until melted.

Serve glaze/sauce with ham (or corned beef).

Enjoy!

If leftover glaze (refrigerated) becomes too thick, simply heat in microwave for 10-15 seconds.