Shake. Double strain into coupe. Garnish with strawberry. (And, optionally, kiwi slice and/or basil leaf.)
Recipe for shrub (based on Serious Eats' cold process (https://www.seriouseats.com/recipes/2011/06/cold-processed-berry-shrub-…)
1 cup strawberries, stemmed, chopped, and slightly crushed
2-3 kiwis, peeled, chopped, and slightly crushed
~12 leaves fresh basil, torn
~12 black peppercorns (to taste), whole
1 cup white sugar
0.5 cup apple cider vinegar
0.5 cup balsamic vinegar
Macerate fruit, basil, and peppercorns with sugar at room temperature for several hours.
Add vinegar; refrigerate another 24-48 hours.
Use when all sugar dissolved.