Grease the pan with a thin layer of oil.
Take the dough out of the bowl and place it on a lightly floured surface. Roll it into a long rectangle about 1/4 inch thick. Spread the filling evenly across the entire surface of the dough, right up to the edges.
Starting from the wider side, tightly roll the dough into a jelly roll shape.
Using a sharp knife, cut the roll lengthwise.
Twist the two halves together, forming a braid. Coil the twisted dough around itself into a spiral, tucking the end underneath. Carefully transfer it to a prepared pan, exposed chocolate-side up, and cover it with a clean towel.