Free pork tenderloin from the sinews , salt, pepper and fry all round with oil in a hot pan for about 3 minutes. Allow it to rest for about 4 minutes in the oven at 60 degrees or on the stove edge.
Braised Cherry Tomatoes
Wash the cherry tomatoes and remove the stalks. Heat olive oil in a pan, add tomatoes, salt and pepper and season with white wine vinegar and basil and let it stew for about 6 minutes.
Completion
Spread mustard on the pork fillet and roll in the chives.Cut the fillet into pieces, arrange on plates and garnish with the braised cherry tomatoes. Sprinkle with a little fleur de sel and serve.