No glue used. It is held together from the backside with screws. 1 x 4 underneath, in two locations. Very front and just in from the Kettle.
cross braced 1"x4"s?
have you ever used a kreg jig? you wouldn't need the 1x4.
not my work just a google image, kinda sloppy but you get the idea.
they're like $40 at menards, love the thing. almost feel like a pro using it.