Bicks Zesty Onion Relish

Hi guys - when I was in Canada last time, I picked up a jar of Bicks Zesty Onion Relish. It didn't last a week at home. Hubby kept asking for "anything that would go with that relish" for dinner - it was THAT good! I got the list of ingredients off the jar, but I can't find a recipe online that seems to come close. I winged it, and made something passable, but it's not the same.

Onions, sugar, white vinegar, water, spices and seasonings, modified corn starch, dehydrated peppers, salt

It definitely had mustard seeds in it, but I can't figure out the rest. Does anyone have a good copycat recipe for this stuff? Thanks!!