Recipes › Side Dishes › Curly Endive Salad with Grapefruit & Hazelnuts Side Dishes Take advantage of grapefruit season by featuring it in both a side salad and your main dish. Serve these Seared Scallops with Grapefruit Hollandaise with a fresh green endive salad tossed with juicy grapefruit segments, crunchy hazelnuts, and a grapefruit vinaigrette. Ingredients FOR THE VINAIGRETTE, WHISK: 2 Tbsp. each fresh ruby red grapefruit juice, white wine vinegar, and olive oil 1 Tbsp. minced shallots 2 tsp.