once you have made it into a square, cut them into 6 equal parts, fill the brownie batter on each of the strip and roll them up as said above and cover one of the side by pulling dough and place it on the baking tin.
once all the rolls are ready, place them with a few inch gap on the tin, cover it again with a tea towel or with a cling film for an hour or until it rises ( i usually do not allow it to rise too much as the first time round).
at this time for the second raise, i baked the remaining brownie batter in little 