Heat Oil to 160°C to 170°C. Dip Brussels Sprouts into Tempura Batter and slide them into the hot oil. Do not fry too many at once. Turn them over a few times. When the batter is golden and crispy, take them out and lay them on a rack or paper towel to drain the oil. *Note: If Oil is too hot, batter turns golden too quickly before Brussels Sprouts are cooked.