|White sauce||1⁄2 Pint|
|Lemon juice||1 Tablespoon|
Discard the outer stems, which are very tough.
Cut the inner stalks into 5-in lengths, remove the prickles, cover with boiling, salted water and lemon juice and cook very gently for 15 min.
Drain and rub off the skins with a cloth.
Put into fresh, boiling, salted water and continue to cook very gently for another 1-1 1/4 hr.
Drain well and coat with white sauce.