Maple Mustard Glaze for Ham

We had our usual holiday ham for Christmas, from Hager's this year.  My sister and I put together this glaze, which was delicious.  Sweet but not too sweet, tempered by tangy vinegar and mustard.  This would also work well to toss with cubed squash or sweet potatoes for roasting.

1/3 cup maple syrup, preferably grade B (dark)
2 Tbsp cider vinegar
1-2 Tbsp spicy brown mustard
Salt and pepper to taste

Combine all ingredients in a small saucepan and cook over medium heat, whisking until smooth.  Simmer until somewhat reduced, then refrigerate until ready to use.

Makes enough for one 10+ pound ham.