The so-called Undercover recording sessions at Pathé Marconi, with sound engineer Chris Kimsey, lasted from November 11-December 17, 1982, and continued, with intervals, in January-March, 1983. Both Ian Stewart and Chuck Leavell joined the band during the sessions. Stu played piano on some 10 songs, among which a couple of tunes that would make it to the final album, but also on some well-known outtakes like 'Cookin' Up' (aka 'Chainsaw Rocker'), 'Slide On' and Eddie Taylor's 'Looking For Trouble'.
Stu (on piano) and Chuck (on organ) joined forces on another outtake, the fine boogie and stroll tune 'Cook Cook Blues', which stayed in the can until it appeared as the B-side to the 1989 "Steel Wheels" single 'Rock And A Hard Place'. Here's the 1982/83 Pathé take, you can find the 1989 single version anywhere on the net.
Adapted from the following source: Martin Elliott, The Rolling Stones Complete Recording Sessions 1962-2002, Cherry Red Books, 2002.