The Costco in Folsom is selling a Shake Shack-style burger, according to reports from KABC and Foodbeast.
The Costco in Folsom is selling a Shake Shack-style burger, according to reports from KABC and Foodbeast. Dreamstime TNS
The Costco in Folsom is selling a Shake Shack-style burger, according to reports from KABC and Foodbeast. Dreamstime TNS