Step by Step
Crack the grains. Treat 2 gal. (7.6 L) water with one teaspoon each of gypsum and calcium carbonate. Heat to 164 °F (73 °C). Add grains, gently mix in. Mash should settle at 152 °F (67 °C) or so. Hold for 60 min. Wash the grains with 2 gallons (7.6 L) hot water (~ 168 °F/76 °C) and top off the kettle to 6.5 gallons (24.6 L).
Turn off heat and add the treacle and dried malt extract, and stir until all everything is dissolved. Bring to a boil, total boil time is 90 min. Boil 30 min., then add both the Goldings and the Fuggle hops. Boil 60 min. more.
Remove from heat, chill, and add to primary fermenter with enough chilled pre-boiled water to make 5.25 gal (20 L). When cooled to 70 °F (21 °C), pitch yeast.
Ferment warm, ~68 °F (20 °C) for three or four days, then move to a cooler place, 60 °F (16 °C) for a week to 10 days. Rack to secondary if you so desire and age cool for three to four weeks more. Prime with brown sugar, bottle, and allow time for proper carbonation or keg and force carbonate.
This beer will be drinkable in one month but will be better in three. You may find (if it lasts) that a two-year-old bottle will be wonderful.
All-grain option:
Increase the pale malt to 11.5 lbs. (5.2 kg), mash with crystal, chocolate, and wheat in 4.25 gal. (16 L) of water; sparge with 5 gal (19 L). Collect 6.5 or 7 gal. (24.6 or 26.5 L) of wort, then boil long enough to reduce to 5.25 gallons (20 L) with hop schedule as above.