At San Diego’s Seven Caves Spirits, distiller Geoff Longenecker makes conventionally aged rums, but the Roasted Peanut Rum is one of the odder passions he indulges. The smell of the rum, all concrete and peanut shells, evokes a baseball stadium, while the sweet, creamy flavor conjures Reese’s Peanut Butter Cups without devolving into saccharine candy.