Mix the yeast with the water and sugar, then add the oil. Put the flour and salt in a large bowl and make a well in the middle. Pour in the liquid yeast mass there and knead with the flour to form a dough. Cover the dough and let rise for 1 hour at room temperature. Then knead the dough well again and roll it out thinly on a baking sheet. set up the edge a little. Prick the dough a little with a fork and top it as you like. Then bake at 180 ° C for about 20 minutes