Guess Where I'm Eating This Burger -- and Win a Prize [Updated with Clue Answer!]

Somewhere beneath that cheese and barbecue sauce is a burger. The first correct guess where I ate it wins a set of four (4) nifty Kentucky Derby glasses. Guesses as comments. You must leave a valid address in the email section of the comment entry field to qualify. Sorry, RFT colleagues, you're not eligible.

Clue #1 (Wednesday, 4.28, 4:05 p.m.) The burger was messy. You might say it was a fork and knife burger. Especially the latter.

Also, a reader asked via Twitter if you can guess more than once. Because I'm making up the rules as I go along, I'll say yes, but I'm going to limit you to THREE GUESSES PER EMAIL ADDRESS. Not perfect, but better than nothing.

Update (Wednesday, 4.28, 4:25 p.m.) Congrats to commenter Kelley, who correctly guessed that this burger is from The Mack Bar & Grill on Macklind Avenue. (Fork and KNIFE burger -- Mac the Knife.) You'll be hearing from me shortly, Kelley. Thanks for playing, everyone!