Ordered pan-fried sea bass on a bed of 'crushed' Jersey Royal potatoes and my friend ordered a char-grilled chicken fillet. The food arrived way too quickly to have been freshly cooked and certainly had neither the taste or the appearance of freshly-prepared food. Instead of having lovely crisp skin, glistening with the oil it had supposedly just been fried in, the sea bass looked dry and flabby, as though it had been cooked earlier and reheated. The chicken was no better and could not possibly have been char-grilled in the time between placing our order and the food arriving. Why would anyone 'crush' Jersey Royal potatoes? Part of the attraction is the texture of freshly-boiled new potatoes in their skins. Seasonal greens, ordered as a side-dish were completely undercooked and lukewarm instead of hot.
In my experience, Black Sparrow is best avoided. There must be many other Glasgow restaurants that serve genuine freshly-cooked food, made from fresh ingredients. Perhaps the burgers would have been better but when they offer fish on the menu, they should be able to do better than they did. Or give up offering fish and leave the 'chef' to cook burgers.