In a bowl add the yeast, the sugar and flour and stir. Then add the salt and the water.
Gently stir with your hand or a wooden spoon to form a dough then knead the dough for ten minutes.
Return the dough to the bowl, cover and leave to rise until doubled in size, about 1 or 2 hours.
Line a baking sheets with baking paper, spread a couple of tablespoons of olive oil. Tip the dough out of the bowl into the baking tray.
Flatten it onto a baking sheet, pushing to the corners, and press the tips of your fingers in the dough, then leave to prove for one hour.
Preheat the oven to 220C/Gas 7.
In a small bowl add 3 tbsp of water and 3 tbsp olive oil then mix until combined.
Drizzle the dough with the oil mix, sprinkle with coarse salt then bake in the oven for about 20-30 minutes.