Ingredients

• 1 cup frozen raspberries, plus extra for garnish
• 1/2 cup fresh mint leaves, plus extra for garnish
• 1 tablespoon granulated sugar
• 3/4 cup white rum
• 1 tablespoon fresh lime juice
• One 750-milliliter bottle Lillet
• Ice
• 1 cup seltzer

Instructions

1. Mash the raspberries with the mint and sugar in a large bowl, using a potato masher or muddler, until the raspberries break down into very small pieces. Add the rum, lime juice and Lillet and stir to combine. Cover and refrigerate 1 to 4 hours.
2. Strain the mixture into a large pitcher with ice. Add some raspberries and mint for garnish and top off with the seltzer. Serve immediately.