Details are below and any improvement suggestions would be well received.
500g spraymalt, pale
25g caramalt (possibly too much as darker than I would like, maybe 12g next time)
Cascade hops (6.8%) 3x 5g (weighed using a hastily constructed lego and coctail stick contraption, estimated to be accurate to at least 250mg!)
Muntons ale yeast (1/3 packet)
1) Steeped caramalt in 1L water, 71 degrees for 30 mins
2) Rehydrated yeast in 200ml water (25 deg)
3) strained water from 1), added 2L water, increase temp to 75 deg. add 5g hops and steeped for 30 mins (I understand this is first wort hopping which will lead to retention of aroma)
4) Added DME, 5g more hops and boiled for 60 mins
5) Cooled in cold water bath and added an additional 2L cold water
6) Poured into demijohn (aerating), pitched yeast when around 21 degrees, topping up to 4.5 litres (OG 1.040). Fermentation underway 6 hours later @ 19 degrees.
Smells fantastic so far and initial taste is promising (although a little malty and yeasty

Will move into secondary fermentor in 2 weeks, dry hopping with a further 5g cascade.