The recipe says it’s for two racks of ribs. I made two racks and only used about 1/3 of the glaze.

I used a sweet rub (http://www.cigarasylum.com/vb/showthread.php?t=63808) on the ribs and smoked them (180-200) for 2 hours. Then, I spread glaze on them and flipped them every 20-30 minutes for another 2-2.5 hours.

Yum!

1 cup maple syrup
3 T ketchup
2 T Worcestershire
1 T Dijon mustard
1 T cider vinegar
1 T horseradish
½ cup brown sugar

Bring to a boil. Reduce to medium and simmer for 5 minutes.
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Nice. I've winged similar on the fly w/o the horseradish and swapping out about 1/2 the ketchup with sriracha sauce for a kick.

BTW, you can save yourself the flipping if you use vertical racks or roll the ribs up.
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I flip em so I can baste both sides. I only use my vertical rack when I need to cook many racks - which isn't often.
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I never had a problem basting both sides when the ribs were vertical. :-)
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That sounds really tasty, Peter, thanks for sharing.
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