Loudons (Fountainbridge & New Waverley)

Loudons is the pick that removes the most brunch friction. It runs two central Edinburgh cafés — the original at 94B Fountainbridge in the West End and a newer branch by Waverley station at New Waverley — and both take reservations, so a weekend group can lock in a table rather than gamble on a pavement queue. It stands out most on dietary breadth: the menu carries a large range of gluten, dairy, nut, egg and sugar-free items alongside vegan and vegetarian dishes, it is clearly labelled, and staff can prepare separately to reduce cross-contamination, which none of the others advertise. All bread and cakes are baked downstairs, and the food leans on brunch staples — Eggs Benedict with variants (hot-smoked salmon, avocado, spiced crayfish, haggis), pancakes, French toast and full plates. As a chain of two branches, details vary by site, so check the specific location's hours. It ranks first because it is the only pick that pairs booking, a genuine bakery and best-in-class allergen handling in one central operation.