Instructions
Follow the steps and taste along the way.
Prepare the plums
Preheat the oven to 210 °C. Arrange the plums cut-side up on a baking sheet lined with parchment paper. Sprinkle them evenly with the sugar, black pepper, and salt.
Roast the fruit
Roast for 25 minutes at 210 °C, until the plums are soft and their edges begin to brown. Reserve the juices and melted sugar from the baking sheet.
Make the fruit base
Transfer the plums and all the juices from the baking sheet to a small saucepan. Add 300 ml water, bring to a gentle boil, and cook for 5 minutes. Mash the fruit with a wooden spoon and let it stand for 10 minutes.
Strain and season
Strain the mixture through a fine-mesh sieve into a container, gently pressing the pulp with a spoon. Let the base cool, stir in 40 ml lemon juice, and refrigerate it for at least 30 minutes.
Pour and serve
Divide the ice among 4 glasses. Pour in about 80 ml chilled plum base and 150 ml sparkling water per glass. Stir briefly and serve immediately, well chilled.
