Maple glazed pan roasted Brussels sprouts with chestnuts recipes

Name: Maple-glazed pan-roasted Brussels sprouts with chestnuts recipes
Ingredients: 1 tablespoon sea salt for the blanching water; 1 1/4 lbs (560 g) Brussels sprouts – trimmed and cut in half; 1 tablespoon unsalted butter; 3 tablespoons extra virgin olive oil; 1 tablespoon maple syrup (or brown sugar); 4 oz (115 g) vacuum-packed whole roasted chestnuts; 2 large shallots – skinned, quartered and finely sliced (1/2 cup); 1/2 teaspoon sea salt; ground black pepper