Fill the beans with cold water and leave them overnight. In the morning, rinse and boil until tender. Add salt at the very end of cooking. Drain the water.
Cucumbers cut into strips. Cut the chicken breast into cubes.
Beat the sauce. You can use ready-made mayonnaise, but it is much tastier and healthier. To do this, pour the butter and milk into a narrow bowl, glass or jar. Add salt, sugar, mustard and vinegar. All in one dish. Beat with an immersion blender until the mixture thickens. Sharpen your attention! It is an IMMERSION blender.
The sauce is whipped in seconds. Put the prepared products in a salad bowl or glasses in layers.
1 layer-chicken + mayonnaise
3 layer-beans + mayonnaise
Repeat all layers.