Kohlrabi Purée

• 2 heads kohlrabi (about 400 g/14 oz in total)
• 450

Peel the kohlrabi and cut into 2 cm (¾ inch) dice. Place in a saucepan and add enough milk to cover. Bring to the boil, then reduce the heat to low and simmer until cooked through. Strain, reserving both t