<<Disclaimer: Verify this information before applying it to your situation.>>

Yes, Kraft Mac & Cheese Sauce is gluten free.  For those unaware, Kraft
lists all products with wheat very clearly on the package, so there is
no "hidden gluten" on the labels.  You can purchase the cheese sauce
separately - it's called "Kraft Macaroni & Cheese Cheese Topping" in a
canister at www.netgrocer.com and one person said it is available at Wal
Mart near the popcorn aisle (it's marketed as popcorn topping).
Enjoy!
- Diana in Boston

*Please provide references to back up claims of a product being GF or not GF*