Complex sentence: Allowing the dough to proof and rise takes several hours, during which time the meat from the previous day is sauteed over a very low flame for a few minutes just to ensure that the flavours in the filling meld a bit.
Split into simpler sentences: Allowing the dough to proof and rise takes several hours. The meat from the previous day is usually sauteed over a very low flame for a few minutes just to ensure that the flavours in the filling meld a bit.