Coarse kosher salt and freshly ground black pepper to taste
3egg yolks
1tbsplemon juice
1/4lbunsalted buttermelted
2tbspminced fresh tarragon or flat-leaf parsley
2shell steaks3/4 lb each
1tbspunsalted butter
Instructions
Preheat the broiler.
TO MAKE THE SAUCE, boil the vinegar, wine, shallots, dried tarragon, and salt and pepper in a small non-reactive saucepan until reduced to about 2 tablespoons. Strain, reserving the liquid, and cool.
Put the egg yolks, lemon juice, and reserved liquid into a blender. Mix at high speed. Slowly pour in a steady stream of melted butter as the blender runs. When all is well blended, pour sauce into a bowl. Stir in minced herbs and correct seasonings. Set aside.
Put steaks on a broiler rack and broil on each side for 5 minutes. The steak will be rare.
Dot the steaks with butter, season to taste, and serve immediately with béarnaise sauce.