They're called 'center of the store' items, canned or dry goods and non-consumables like paper and cleaning products, all with a long shelf life.
And they're still going up in price even as some meat, dairy and produce price increases are slowing down. Specifics mentioned in today's WSJ article include potato chips (up 17% in a year), mayonnaise (up 23%) and applesauce (up 22%).
While the article doesn't mention it, one thing I've noticed is that soup crackers have nearly doubled in the past few years, from $1.99 to $3.50 for a box of 4 stacks of saltines. A bag of Hershey's kisses has gone from under $12 to around $17 at Sams Club.