Not only does the molasses help the marinade cling to the veggies, it caramelizes nicely on the grill. To marinate, I throw everything in a 2.5 gal zip lock bag and just turn the bag every so often. I usually use regular (not white) balsamic vinegar. We use this marinade on pretty much whatever the farmer's market is offering as an accompaniment to whatever else we're grilling.
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