Put the bowl of the mixer and zero. Add the older dough and check the weight. You can add new flour, water and salt to about the same weight.

Add the flour and water in a proportion of 2 to 1. eg 400 g flour and 200 ml water and a tsp of salt, packet of yeast

Mix with the stand mixer for about 8 minutes, starting slowly for 2 minutes and then speed up

Add a tiny amount of flour or water as needed

Allow to rise for an hour

Empty the dough out from the bowl and shape as you would want to and allow to rise again