I’m having a small birthday party for my twin boys. The kids are eating hotdogs and adults I want to make baby back ribs. Theirs 11 adults. How many packs of ribs from sams should I buy ? I never bought their baby back ribs before and I never cooked for a crowd before. I think the pack comes with 3 slabs. I’ll double check with the butcher to make sure. Is a half a rack per guest what I should aim for ?