Defrost peas at room temperature. For the mayonnaise, place mustard, egg yolk, vinegar and 1/2 teaspoon salt in a slim mixing bowl. Add oil and mix the egg yolk with the blender at lowest speed to an emulsion. Only when a connection is clearly visible from the outside, slowly pull up the hand blender and mix the remaining oil in the beaker with the emulsion to a mayonnaise. Season with pepper
Prepare the pasta in boiling salted water according to the instructions on the packet. Boil eggs in boiling water for 8-10 minutes until hard. Peel the skin from the sausage. Halve the sausage lengthwise and cut into slices. Wash parsley, shake dry, pluck leaves from stalks and chop
Pour the pasta into a sieve, rinse with cold water and drain well. Drain the corn and let it drain. Mix yoghurt, mayonnaise, parsley, noodles, corn, peas and sausage into a salad. Season with salt, pepper and vinegar. Peel the eggs and chop them into small pieces. Add to salad and fold in carefully