Wash the asparagus, peel generously and cut off the woody ends. Cook in boiling salted water with 1 teaspoon of sugar for 12-15 minutes.
In the meantime, roast the pine nuts in a pan without fat. Remove and chop. Wash and finely dice the tomatoes. Clean and wash spring onions and cut into fine rings.
For the sauce, mix vinegar, salt, pepper and 1 pinch of sugar and fold in the oil. Mix with tomatoes, spring onions and pine nuts.
Lift out the asparagus and drain well. Serve with the tomato and pine nut salsa. Serve with new potatoes or baguette.