Cut 1 lime into wedges. Put half of the wedges in a sturdy glass with 1 tsp brown sugar and 2 rosemary sprigs, and muddle until the sugar dissolves and the lime releases its juice.
Fill the glass with 1 glass crushed ice. Pour in 1/4 glass apple juice and top with 1/2 glass lemonade. Stir gently.
Clap the rosemary between your hands before you use it. It releases the aroma without bruising the leaves.
Serve with the rest of the rosemary sprigs and lime wedges.
Notes
For a grown-up version, add 1 1/2 oz (45 ml) of white rum in step 2.