4 boneless, skinless chicken breasts (about 2 1/4 pounds)
Salt and freshly ground white pepper to taste
2 tablespoons olive oil
2 tablespoons butter
6 tablespoons finely chopped shallots
2 teaspoons finely chopped garlic
4 teaspoons finely chopped fresh tarragon, or 2 teaspoons dried tarragon
8 ripe plum tomatoes cut into small cubes (or one 28-ounce can of tomatoes, drained and chopped)
¼ cup red wine vinegar
¼ cup drained capers
1 cup dry white wine
2 tablespoons tomato paste
¼ cup chopped fresh parsley leaves
Full recipe from : nytimes.com
Sprinkle the chicken with salt and pepper. Heat the oil and butter in a heavy-bottom skillet. Add the chicken breasts and saute over medium-high heat, turning the pieces often until lightly browned, about 5 minutes.
Add the shallots and garlic around the chicken. Cook briefly; add the tarragon, tomatoes, vinegar, capers, wine and tomato paste. Stir to dissolve the brown particles adhering to the bottom of the skillet.
Blend well, bring to a boil, and then cover and simmer for 9 minutes. Sprinkle with parsley and serve.