Ten loaves - Probably common or household bread.
Cracknels - נקדים nikkuddim, spotted, or perforated bread; thin cakes, pierced through with many holes, the same as is called Jews' bread to the present day, and used by them at the passover. It was customary to give presents to all great personages; and no person consulted a prophet without bringing something in his hand.
See the marginal reference The presents here were selected for the purpose of deception, being such as a poor country person would have been likely to bring. Jeroboam counted also on Ahijah‘s blindness 1 Kings 14:4 as favoring his plan of deception (compare Genesis 27:1, Genesis 27:22).
Cracknels - See the margin. The Hebrew word is thought to mean a kind of cake which crumbled easily.