A rich and comforting chicken wellington wrapped in flaky pastry and served with a smooth Dijon cream sauce.
2 large boneless, skinless chicken breasts
1 sheet puff pastry, thawed
1 cup finely chopped mushrooms
1 small shallot, finely chopped
2 cloves garlic, minced
1 tablespoon butter
1 tablespoon olive oil
1 teaspoon fresh thyme leaves
1/2 teaspoon salt
1/4 teaspoon black pepper
2 tablespoons Dijon mustard
1 egg, beaten
1/2 cup heavy cream
1/4 cup chicken broth
1 teaspoon lemon juice
Cook mushrooms, shallots, butter, and oil until dry.
Add garlic, thyme, salt, and pepper; cool mixture.
Sear chicken briefly on both sides.
Brush chicken with Dijon and top with mushroom mixture.
Wrap in puff pastry and seal edges.
Brush with egg wash and bake at 400°F for 25–30 minutes.
Simmer broth, Dijon, and cream for sauce; add lemon juice.
Rest chicken, slice, and serve with sauce.
Cool filling before wrapping to avoid soggy pastry. Do not overcook chicken.