Purple Nasty

Blackcurrant squash
1/3 part Lager (Carling)
2/3 part Cider (Strongbow)

Add the blackcurrant squash undiluted into the pint glass, usually 1-2 cm up the glass will do depending on how blackcurrenty you want it. Then fill up to the 2/3 rds mark with cider, finishing off with larger.