====== Mayonnaise ======

  *  2 egg yolks
  * pinch of salt
  * 150 ml sunflower oil
  * 150 ml olive oil
  * 1 tbsp white wine vinegar
  * 2 tbsp Dijon mustard
  * pepper

Beat egg yolks with salt. Combine oils in a jug. Gradually add 1/4 of the oil to the beaten egg, one drop at a time, beating constantly.

Beat in vinegar, then add the rest of the oil slowly whilst beating. Stir in mustard and season to taste.