Sweet stout

6 lb ESB Pale malt.
4 lb Maris otter
1lb black patent malt
0.75 lb Crystal 80
0.5 lb pale chocolate malt
1.5 oz Kent golding 60 min
yeast wpl006
Mash at 151 for 60 min
add 1 LB Lactose last ten minutes of boil
OG 1.060
FG 1.023