Alcohol has a ton of sugar in it in general, so most of us craved sweets to some degree and for some amount of time once we quit drinking. I sure did - ice cream was my biggie. I needed to gain weight when I quit and I just mostly focused on getting healthy - here at just after a year, I am a little heavier than I'd like, run a 5K every month, eat well and finally quit the ice cream.
Take care of yourself and that does include cutting yourself some slack at the beginning. As you go through recovery, you can look at why you eat or do anything else- just keep not drinking!