Place first half of butter in the middle of the dough. Fold one side of the dough over the butter, then place the other half of butter over that and fold the other side of the dough over that half of butter. Roll dough out and repeat this step. Place back in frig for 30 minutes. Repeat this step two more times making sure to place the dough back in the frig after time (fold,roll,frig). After the third time, leave in the frig for two hours or overnight, depends on when you started.