Note regarding the oleo saccharum: The exact measurements don’t matter for creating oleo saccharum. Simply combine equal parts (by weight is best, if possible) lemon peels and sugar. For our purpose, we’re then adding water to dissolve the remaining sugar. This resulted in about 1 cup of oleo saccharum simple syrup used to sweeten the lemonade. Use undiluted oleo saccharum in all kinds of cocktails, from punches to Old Fashioneds!