I need to make about 200-250 cupcakes for my daughter's Bat Mitzvah, but I am not a baker. Is there an easy recipe that I could try, or should I use a box? Or, has anyone bought premade naked cupcakes from like BJ's or Sams Club?

Hi and Welcome to CC, Marinab.

There are lots of cc recipes in this thread:

http://cakecentral.com/cake-decorating-ftopict-582525.html

Favorite cupcake cookbooks:

http://www.cakecentral.com/cake-decorating-ftopict-664183-.html

Bettercreme fun:
(Frostings/fillings for cupcakes.)

http://www.cakecentral.com/cake-decorating-ftopict-601193-.html

Everything you need to know to make, decorate and assemble tiered/stacked/layer cakes:

http://www.cakecentral.com/cake-decorating-ftopict-605188-.html

Above super thread has popular CC recipes for crusting American buttercreams, several types of fondant and doctored cake mix (WASC and other flavor variations) - and so much more!

HTH

Try the cake mix extender recipe from this site, it makes the best cupcakes, everyone loves them. It starts with a mix but you add to it so you get that homemade taste. And it makes about 29-30 cupcakes. You can also freeze them (I've done it for a couple of months) when they thaw out they taste great! Good luck!

The extender recipes are great and they make the cupcakes a little bit heavier so they don't fall over as easily.