As Yoda stated, you can, but they are inexpensive ($2, I believe?). You may get better value for your credits elsewhere. I try to maximize value with the snack credits since they've removed so much from the DDP over the last few years. Either way, you'll be hooked!! The cloud-berry horn is also good at Kringla Bakery.
And since we are all about Kringla Bakeri og Cafe, many of you know I'm a huge lefse fan as well. Certainly not as sweet as school bread, but I love it. It's more of a nostalgia thing for me.