Hi im fairly new here but I really need some help, I just baked a reg dh box cake and I go look in the oven and there are bubbles in the batter what causes this?????

Too much air in the batter.Let it sit for a few minutes before filling the cakepan.Also banging the bowl on the counter will help pop the bubbles too.

agree with the above. I always bang the snot out of the filled cake pans before they go in the oven. It's kinda fun to watch the bubbles surface and burst when I do this!

You've never encountered this before in any cakes you've baked? It's fairly common.

If you overbeat the batter you'll add too much air into it and it will have air bubbes that cause what look like tunnels. It's called "tunneling"

Thanks to all of you , yes I have had this happen before I just had so many that it was hard to look at. . I will try banging the cake and letting it sit for a short while before sitting them in the oven.

Are you using a stand mixer to mix your cake batter. If so you need to reduce the speed to the lowest setting.

If using a hand mixer, use the lowest of the medium speeds.

And never mix for longer than the directions recommend.

Handy cake trouble shooting charts:

http://tinyurl.com/2p5bdu

http://tinyurl.com/32goqe

http://tinyurl.com/6c745g

HTH

P.S. You also need to sift the cake mix before you add any of the other ingredients. It's almost impossible to beat the unsifted lumps out. All you'll do is overmix the batter resulting in a tough cake.