Onion jam, on a porchetta sandwich

anna_x

Well-known member
we had this from the Roti-something booth at the SF Ferry building when we visited a while back. I keep thinking how good it was, and if I can make it at home.

Is onion jam made with red or white onions, or even sweet ones? Do you use vinegar or wine? Help, I'm still salivating!

 
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