If you've ever thought adding condiments to your burger is a messy business or you hate how sauces make bread go soggy, then Slice Of Sauce is probably a company who's core concept you can get behind.

Husband and wife duo Cole and Emily Williams saw a problem with everyday sandwiches: lousy sauce packets. Those packets of ketchup and mustard that you get at drive-thrus are fussy, hard to open, and ...