Béarnaise Hollandaise with the vinegar reduction rebuilt around tarragon and shallot. The sauce for grilled beef, and the reason anyone learns emulsions. 30 g — shallot 10 g — tarragon 60 ml — white wine vinegar 60 ml — dry white wine 1 pinch — cracked black pepper 3 pc — egg yolk 180 g — clarified butter 3 g — salt Simmer the shallot, half the tarragon stalks, vinegar, wine and pepper until only two tablespoons remain. Strain and cool to lukewarm. Whisk the yolks into the reduction over steaming water until they ribbon, then take the bowl off and add the warm butter in a thread exactly as for Hollandaise. Finish with the remaining tarragon leaves, chopped at the last moment. Chopped early, tarragon turns grassy and bruises the sauce. Grilled steak, lamb chops, thick white fish, asparagus.