Cool the basting sauce. Preheat broiler. Arrange the salmon, skin side down, on an oiled rack of a broiler pan, and season with salt. Brush the maple sauce over the salmon fillets. Broil salmon ...

In a small bowl, whisk the maple syrup with the lemon juice, both mustards and 1 tablespoon of the grapeseed oil. Thread the salmon onto skewers and season all over with salt and pepper.