First prep your glasses to impress. Mix the Aleppo chilli and sugar and lay it out on a small plate. Wipe the lime wedge around the rim of each glass, then dip the wet edge into the chilli sugar.
Pop the mezcal, lime, agave syrup and ouzo into the Boston shaker. Add plenty of ice and shake hard for a minute. Fill the glasses with ice and add a grapefruit wedge to each, then double strai