Work together the oil and the sugar by hand. Add the wine, the baking powder and, gradually, the flour. The dough is ready when it no longer sticks to your hand. Cover the dough with a tea towel and preheat the oven to 180°C. After half an hour, form the dough into plait shapes and dredge them in the sesame seeds. Place them on a parchment-lined baking sheet and bake for 20-25 minutes. They are ready when they have turned a golden brown colour.