Stir with ice, strain into a cocktail glass, and garnish with a cherry.
After moving a book on my desk and uncovering a note highlighting the interactions of Aperol, walnut liqueur, and Cynar, I began to think about directions to take some of those ingredients. The duo of Aperol and walnut has worked great together several times before, and that got me thinking to one of my favorite nutty-Aperol combinations in the Prospect Park with Maraschino as the nutty component. Therefore, I made my riff subbing in walnut liqueur for the Maraschino and swapping the spirit to Scotch to complement the walnut element. For a name, I dubbed this one after a historic neighborhood in Edinburgh, Scotland.