The earliest mention of sugaring the rim on a sidecar glass is 1934, in three books: Burke's Complete Cocktail & Drinking Recipes, Gordon's Cocktail & Food Recipes, and Drinks As They Are Mixed (a revised reprint of Paul E. Lowe's 1904 book).
A primeira mención de azucarar o bordo nun vaso de Sidecar é de 1934, en tres libros diferentes: Burke's Complete Cocktail & Drinking Recipes, Gordon's Cocktail & Food Recipes, and Drinks As They Are Mixed (unha reimpresión revisada de 1904 Paul E. Lowe libro).