Remove stems from artichokes. Cut slice from top. Stand each on a slice of lemon in
a saucepan. Cook in boiling water with vinegar
for 15-20 minutes. Drain. To prepare dressing :Shake all
ingredients together in a screw-top jar until well blended. Mix with eggs, spring onions and
tomatoes. Mix dressing with eggs, spring
onions and tomatoes to make filling. Gently open artichoke leaves to
reveal centre hairy choke. Scoop this out with a teaspoon,
discard. Spoon filling into centre.