In a measuring glass, place the strawberries cut into pieces, the sugar, the lime juice, and the half lime cut into chunks.
Muddle everything together using a cocktail muddler, or if you don’t have one, use a fork to release the flavors and aromas.
Divide the mixture evenly between two highball glasses.
Fill the glasses with crushed ice or ice cubes, leaving some space to add the lemonade.
Decorate the inside of each glass with a slice of lime, a few strawberry slices, and some mint leaves. This is optional, so feel free to skip it if you prefer.
Top up with lemonade or sparkling water. If you’re using rum, add it at this stage.
Garnish the rim of each glass with a whole strawberry and a mint leaf.