silver fulminate.
He is crackle
Assuming that you mean the paper strips commonly referred to as "cracker snaps", the answer is silver fulminate.
You really can't make them. It would be easier to Just buy em
a cracker packer
cracker
Graham - as in graham cracker.
A crackalackin' crack oyster cracker cracker would crack as many crackalackin' crack oyster crackers as a crackalackin' crack oyster cracker cracker could crack, if a crack oyster cracker cracker could crack oyster crackers in a crackalackin' way.
A cracker is a biscuit that is crunchy.
Is a cracker a mixture
cheeze cracker
Cheese-cracker.