Start reverse dieting. Slowly add calories per week--about 100-150 calories until you're at maintenance. From there, play around with your intake and see what works for you. 200-300 calories should be fine, but again, trial and error.
Also you might want to hang around at maintenance for about two weeks once you get there to stabilize hormone levels and such.
At least that's what is typically recommended but I'm not sure if reverse dieting makes it unnecessary. I would probably still do it just to be safe. After my last cut I didn't do the whole two weeks I think and everything I ate went straight to fat storage because my hormones were out of whack.