Mishná sobre Ester 2:7

If one chops up [fruit] for cooking, even if [the chopping had] not been completely finished, it is not regarded as connected. If his intention had been to pickle or to boil it, or to set it on the table, then it is regarded as connected. If he began to take [the pieces] apart, [only] that part of the food which he began to take apart is not considered connected. Nuts that had been strung together, or onions that had been piled together, count as connected. If he began to take the nuts apart, or to strip the onions, they are not connected. [Shells of] nuts and almonds are considered connected [with the edible part] until they are crushed.