Pour off 10 ounces vodka from the bottle and reserve for another use. To the bottle, add espresso powder, Kahlúa and water. Cap bottle, shake and store in freezer until well-chilled, at least 4 ...

For an even more refreshing take on the popular drink, use the four core ingredients to make an espresso martini ice pop ... freeze. For that same reason, be careful not to over-pour the vodka ...