Ritz was a brand of crackers which had red packaging with the brand name in yellow text over a blue circle, with crackers on both sides.
They were sold at M.A. Local Supermarket in 2021. (TV: The Vanquishers)
Behind the scenes
In the real world, Ritz Crackers were originally made by Nabisco, and were later acquired by Mondelēz International, who also own Maynards Bassetts.