Mix yeast and sugar in 100 ml of water and let it rest for 5 minutes.
Put flour, salt and rosemary in your mixing bowl and stir.
Add the 100 ml of water with yeast and the other 200 ml of water together with the oil.
Insert your dough hook and let it knead for 10 minutes, add the olives last minute and mix briefly.
Cover mixing bowl with the plastic lid and let it rise for 1 hour.
Dust your work table with flour and place dough on it.
Knead air from your dough ball and give it an oval shape. Place it on a baking sheet with baking paper.
Let it rise for a 2nd time until it has doubled volume, sprinkle some flour and give some notches in it with a sharp knife.
Bake for 25 to 30 minutes in a preheated oven at 220 °.
Allow to cool before cutting.
Keep in a sealed bag in a fridge, then it will certainly be kept for 5 days. Otherwise, Toast is also top with some goat cheese and figs on for example.