Slice the cucumber in half lengthways, scrape out the seeds and grate the flesh.
Place the grated cucumber in a colander and sprinkle over the salt.
Mix gently with your hands and set aside over a bowl for 15 minutes.
Gently squeeze out the moisture from the cucumber and set a little aside to garnish.
Mix together the yogurt, garlic, vinegar and oil in a large bowl and stir in the cucumber.
Place in small bowls, garnish with dill sprigs and serve with slices of baguette.