Brussels sprouts, halved: 1 lb， Red onion, 1/2-in thick wedges: 1 只， Olive oil: ， Salt: ， Pepper: ， Butter: 2 tbsp， Fresh lemon juice: 1 tbsp， Sliced almond: 2-3 tbsp， Golden raisins: 2 tbsp
1Heat oven to 400 F. On large rimmed baking sheet, toss Brussels sprouts, onions, oil, 1/2 tsp salt and 1/4 tsp pepper. Turn sprouts cut side down and roast until golden brown and tender, 20 to 25 minutes
2About 5 minutes before Brussels sprouts are finished, melt butter on 10-in skillet on medium until foaming. Add almonds and cook, stirring, until the almonds and butter are golden brown, 2-3 minutes. Add raisins, lemon juice, and 1/4 tsp of salt and swirl pan to combine.
3When sprouts and onions are cooked, transfer to platter. Spoon brown butter mixture over Brussels sprouts and onions.