Clean, salt and pepper the meat. Mix the mustard with honey, maple syrup and a little lemon curry powder and marinate the chicken breast fillets in it. Let something go.
Meanwhile, peel the shallots, cut into fine cubes and sweat briefly in olive oil until translucent. Pour the rest of the marinade into the pan, then add the white wine and sour cream and let everything simmer until the desired consistency of the sauce is reached. Season to taste with salt, pepper, lemon curry powder and lemon juice as required.
Sear the meat on both sides and serve with the sauce.
Rice and carrot vegetables go very well with this.