Rum Toddy
Rum Toddy: Rum, Powdered sugar, Lemon peel and Water. Served in an old-fashioned glass. Garnish: twist of lemon peel.

The Spec
Method
Dissolve powdered sugar in water in an old-fashioned glass. Add rum and one ice cube and stir. Add the twist of lemon peel and serve.
Served in an old-fashioned glass. Garnish: twist of lemon peel.
Spec held as sourced — TheCocktailDB. The house never guesses a drink.
What to pour
Bottles in the cellar for each line of the Rum Toddy spec:
Drinks that share this spec
Shares Lemon peel, Powdered sugar and Water with Gin Toddy. If your shelf makes Rum Toddy, it is already most of the way to these:
Gin Toddy · Gin Cooler · Gin Sling · Gluehwein · Jamaican Coffee · Lone Tree Cooler · Mint Julep · Mulled Wine