For our cask Broadside at 4.7% ABV, we use a 80:20 blend of Maris Otter and Optic pale ale malts to give a full biscuity base flavour. We then use a blend of 3 English hop varieties, Fuggles, Goldings and First Gold which together give a well rounded bitterness. We use all the hops at the start of the boil, so we aren't looking for very strong hop aromas to remain in the beer, although you can get a slight orange/spicy hop note. The OG is 1049.5 with a final P.G. of 1013.5. We are looking for a bitterness of 33 BU. The final beer should be malty and full with a well balanced sweetness and Bitterness.
Our Bottled Broadside, at 6.3% uses 50:50 Maris Otter and Optic. It uses First Gold as it's only Hop which provides some of the orange peel character. The OG is 1066 and the PG is 1017. The final bitterness should be 43. The beer should have Strawberry Jam aromas and a fruity biscuity/caramel palate balanced by the bitterness.
The yeast we use is our own yeast which we grow up from scratch about once every 6 months to keep it fresh. So it is not something you can buy
Hope this is of some help
Happy brewing
Fergus Fitzgerald