Ingredients
1
tbsp whole black peppercorns
2
tbsp finely chopped white onion
2
pounds large asparagus spears, trimmed
Directions
1.
Place peppercorns in heavy resealable plastic bag; crush coarsely with mallet. Heat heavy small skillet over medium heat. Add peppercorns and onion. Cook until peppercorns are fragrant and toasted, stirring occasionally, about 4 minutes. Whisk mayonnaise, sour cream, whipping cream, and vinegar in small bowl to blend. Stir in peppercorn mixture. Season sabayon to taste with salt.
2.
Preheat broiler. Butter 13x9x2-inch glass baking dish or broilerproof casserole. Cook asparagus in large pot of boiling salted water until crisp-tender, about 5 minutes. Drain well and pat dry. Arrange asparagus in single layer in prepared dish. Spread with sabayon. Broil until sauce turns golden, about 2 minutes. Serve with lemon wedges.
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