1.5 fl oz The Busker Blended Irish Whiskey, 0.75 fl oz Dolin Rouge, 0.5 fl oz Rothman & Winter Orchard Apricot Liqueur, & 0.25 fl oz Cynar seemed to work well for me. Bittersweet, but leaning more towards the bitter side of the equation. Apricot was subtle, and everything blended together well. I appreciate the fairly unexpected combination of ingredients. I think it could work in an old-fashioned glass with ice, too, especially if you're worried about it being too sweet.