There's a lot of different ways to call these individual packs, here are a few descriptions that I found online:
Have you got - mouldy jam - lumpy milk - rancid butter - suspect sauce - or want to save weight - lose weight - or go to festival - self catering - holiday - staycation - camping - or what about wedding favours - and are you looking for - "Single Portion" - sachets / condiments / sticks / jiggers / dips / own / mini / tiny / small / tubs / solitary / miniatures / lone / portions / solo / pots / squeezy / pouches / singular / packets / individual / bags / boxes / personal / jars / packs … ?
The blurb is written by a British company called SinglePortions who seem to have covered all their bases.
In the US, it appears that single-serving is frequently used, one could call each pack “a single-serving”
The larger container, which holds the single portions or servings, can be called a bag, box (if it is square shaped and made from stiff cardboard), packet, pack or package of crackers.