Thursday lunch sandwich & anchovy mayo

A mixture of flavors: soft white bun - anchovy mayo (yum & important!) - prosciutto - avocado - pea shots - strong cheddar. Simple, yummy, healthy, and beautiful. Oh - and of course some vanilla soy milk.

anchovy mayo

2 egg yolks 
1/2 tsp dijon mustard
200 ml sunflower oil
pinch of salt
lemon juice
3 anchovies (salted, preferably)
1/2 tsp fish sauce

mix the yolks with mustard until smooth
add oil very slowly, start with almost drop-by-drop, and whisk thoroughly after each addition, until smooth and thickening
keep adding oil until you use all of it - the mayo should be thick when you finish
season with small pinch of salt, a few drops of lemon juice
add the anchovies, chopped almost into paste, and fish sauce
mix until incorporated; if the mayo still seems too thick, add 1/2 tsp boiling water and mix it in