Ok,1st of all,the cooper's cans are designed to be brewed to 23L,or 6.072 gallons. The 3 brew enhancers have differing constituents. Their brewing sugar is 80% dextrose,20% maltodextrine. Their brew enhancer 1 is 60/40. Their brew enhancer 2 is 500g of dextrose,250g maltodextrin,& 250g light DME.
Having said that,I used;
1) OS dark ale can,1.7kg,or about 3.462lbs
1) 3lb bag Munton's plain amber DME (keeps the color dark with ruby glint & doesn't make that bitter roasty flavor dark DME would)
1oz Kent Golding hops
1oz Willamette hops
Cooper's ale yeast re-hydrated
Brewed to 23L
The cooper's ales are English derived with some tweaks over the centuries. That's why I used Munton's DME,it's English malts. The hops are English,as that's also traditional. It should give about 5.3%ABV. That's about what I get. My Whiskely ale I made from it was 5.9%. This recipe reminded me of a dark cream ale with a little bit of that toasty flavor. Pretty good one I'd say.