Put the beef in a dish, pour the vinegar all over it, cover and leave for an hour or two in the fridge. Preheat the oven to 160C/140C Fan/Gas 3. When ready to cook, season the beef with salt and ...

Combine the onion, garlic, thyme, and bay leaves in an Instant Pot. Place the corned beef, fat-side up, on top of the onions; sprinkle with the seasoning packet. In a small bowl, combine the beer ...