One Square

You're heading into one of Edinburgh's slicker postcodes when you walk into One Square—Festival Square itself has had a bit of a glow-up in recent years, and this restaurant fits right into that sharper version of the city centre. Inside, it's all grown-up vibes: proper tablecloths, attentive service, and food that reads like someone actually knows what they're doing with British ingredients. The menu lands somewhere between refined comfort and contemporary cooking, which is trickier to pull off than it sounds. It's the kind of place where you can trust the kitchen to deliver without worrying they're trying too hard to impress you.