6 Underrated Kirkland Signature Products You Should Be Buying from Costco

6 Underrated Kirkland Signature Products You Should Be Buying from Costco

Find out why one food writer stocks up on these budget-friendly finds nearly every time she visits the warehouse store.Reviewed by Dietitian Kelli McGrane, M.S., RDEating Well / Getty ImagesConfession: I had never stepped foot inside a Costco store until I was 36. I’d mention this to friends, especially folks who worked in the culinary world, and they would gasp. Then they’d exclaim: “But you write about food for a living! You don’t know what yo…