Blanch and peel the tomatoes.
Cut the tomatoes in half and deseed them.
Blend the tomatoes with the shallot and garlic, adding a drizzle of olive oil while blending.
Add salt to taste, then chill.
Mix the Brousse with the mustard.
Just before serving, pour the gazpacho into bowls.
Using two tablespoons, form a quenelle of mustard Brousse and place it in the gazpacho.
Add pepper and a drizzle of olive oil.