Roasted Brussels Sprouts with Tamarind Dressing

Name: Roasted Brussels Sprouts with Tamarind Dressing
Ingredients: 2 pound brussels sprouts, halved (or quartered, if large) with dry stems trimmed; 2 tablespoon tamarind paste; 2 tablespoon water; 2 tablespoon fish sauce; 1 tablespoon maple syrup; 1 tablespoon apple cider vinegar; 1 garlic clove, grated; 2 Thai chilis; neutral cooking oil; coarse kosher salt and ground black pepper