Wash the asparagus and cut the ends off generously. Clean and wash the tomatoes and arugula. Halve or quarter the tomatoes. Boil eggs for about 8 minutes until hard.
Pour cream and 1⁄8 l cold water into a pot. Stir in sauce powder. Boil up while stirring. Stir in pieces of butter. Season sauce with lemon juice, keep warm.
Heat the oil in a pan with a lid. Sauté the asparagus in it in portions. Season with salt and pepper. Put all the asparagus in the pan, add approx. 4 tbsp. of water, cover and steam for approx. 5 minutes.
Quench the eggs, peel and halve them. Arrange everything.