Hi @pf2022 , if you haven’t yet found a solution, you can try Simple Bundles. You can create a bundle and then add the two wines to the bundle. When a customer purchases a bundle and the order is created, the two wines are added to the order which decreases the inventory for both products. The bundle inventory is then recalculated based on its contents so you won’t have to worry about overselling.
Hope this helps and please let me know if you have any questions! 