Don't cut spaghetti into smaller pieces. Traditionally, spaghetti isn't cut or broken at any time while it's cooked or eaten.[4] This means that you shouldn't break the spaghetti in half before you cook it in boiling water and that you shouldn't use your fork to cut spaghetti strands on your plate.[5]
If you find your spaghetti bundles too large, don't cut your spaghetti — just use fewer strands.