Didn't make this as I could never eat an awesome blossom. However, I work at Chili's and that's not even close to blossom sauce. It contains mayo, NOT sour cream for one.
I used a favorite packaged seasoned flour blend for blossoms that we really like and made this dipping sauce recipe to serve with it. I haven't had Chili's dipping sauce so I can't attest to how close this is to their's, but we thought this was a great sauce - and liked it with our other vegtables too. I only added a couple of shakes of red pepper as DH isn't a fan of anything past mild heat. Pretty sure anytime I serve onion blossoms I'll be making this sauce as well. Thank-you for sharing!
It really didn't taste like the dip at all