Here you go. From the book Craft Brew by Euan Ferguson.
20.5L batch
OG 1.044 FG 1.002 ABV 5.5%
Grain Bill
1.35 kg Maris Otter (low colour) Pale Malt
1.08 kg Pilsner Malt
0.810 kg Wheat Malt
0.270 kg Flaked Wheat
Mash @ 65'c for 60 mins
Hops
Hallertau Magnum 5g @ 60 minutes
Citra 10g @ 10 mins
Citra 10g @ 5 mins
Citra 50g @ Flameout, steep for 10 mins before chilling
Yeast
Wyeast 3711 French Saison (or any Saison yeast)
Ferment 24'c hold for 48 hours, then allow to free rise if possible (I'm going to raise by 1'c per day for three days) then maintain at 27'c.
Other ingredients
180g Dextrose (add slowly as wort comes to the boil)
10g Cracked Coriander seeds, boil for 5 minutes. (I'm not sure from this wording if you put them in the boil in a hop bag for 5 minutes then take them out, rather than add @ 5 mins with the Hop addition, don't suppose it matters too much either way.)
There you go. Great book by the way. 50 recipes direct from some great craft breweries. Only fair to plug it as I've given this recipe away!
Going to stick it in Brewsmith and scale up to 23l, looking forward to this one.
No mention of CO2 volumes in the recipe, but thinking around 2.7 volumes of CO2 from a bit of digging about. Saisons should be very effervescent. Seen some say as high as 4 volumes.
EDIT: Just seen that Malt Miller do an AG kit for this.
https://www.themaltmiller.co.uk/index.php?_a=viewProd&productId=3209 Just need to order your yeast in addition and Brewers Sugar (Dextrose) if you haven't got any. You can raid the spice rack for the Coriander seeds!