My recipe is basically the old CAP recipe that Jeff Renner posted on the old Homebrew Digest lo these many years ago.
Target OG 1.050 - 1.055
For 5 gallons, 8 lbs. of 6-row to 3 lbs. of flaked maize usually gets me there. I may or may not add a half pound of flaked barley or Vienna malt to that.
Target 30 IBUs. I like 4 additions at 60, 30 15 and 0 min. Usually Cluster, Styrian Golding, Hallertauer, and Saaz, in that order. Maybe Northern Brewer for the Styrians or Cluster, although not usually. I recommend not skimping on the Cluster, it is essential for that old time beer flavor (Styrians are pretty good for that, too).
Almost any lager yeast works. I personally like WY2278 Czech pils the best, but you can't go wrong with about anything, 34/70 works great.
I ended up brewing a Helles today instead, but the yeast cakes will be used for the CAP.