Mix mint springs with sugar and lime juice.
Add splash of soda water and fill the glass with ice.
Pour the rum and top with soda water.
Light stir to involve all ingredients.
Garnish with a lime slice.
Soda water: Carbonated water (also known as soda water, sparkling water, fizzy water, club soda, water with gas or (especially in the U.S.) as seltzer or seltzer water) is water containing dissolved carbon dioxide gas, either artificially injected under pressure or occurring due to natural geological processes. Carbonation causes small bubbles to form, giving the water an effervescent quality. Common forms include sparkling natural mineral water, club soda, and commercially-produced sparkling water.
Rum: Rum is a liquor made by fermenting and then distilling sugarcane molasses or sugarcane juice. The distillate, a clear liquid, is usually aged in oak barrels. Rum is produced in nearly every sugar-producing region of the world, such as the Philippines, where Tanduay is the largest producer of rum globally
Lime juice: Lime juice is a common ingredient in many cocktails, as it adds a tangy, citrus flavor. It is often used in combination with other ingredients such as sugar, alcohol, and other fruit juices to create a balanced, flavorful drink. Some popular cocktails that use lime juice include Margaritas, Daiquiris, Gimlets, and Mojitos. Lime juice can also be used as a garnish for drinks like the Margarita, and is also used in many non-alcoholic drinks like limeades and iced teas. It's a versatile ingredient that is used in many drinks and can add a refreshing taste to any cocktail.