1. Place the strawberries in a blender
and pulse until smooth.
2. Add vinegar
and mix well.
3. Pour into a fine-mesh
sieve over a large bowl and let drain.
4. Stir so that you get all the juice from
the berries.
5. Discard pulp.
6. Transfer
juice to a medium pot and add sugar.
7. Stir and bring to a boil.
8. Let
mixture simmer for 5 minutes.
9. Cool
and mix with soda water and ice. Keeps
for 1 week, chilled.