- Slice zucchini into rounds and set aside, and shred cheese if not pre-shredded and set aside. 
- In a medium heat sauce pan add butter and garlic and cook until fragrant. 
- Add the heavy whipping cream and combine. 
- Slowly add the fontina cheese allowing it to melt before adding more and continuously stirring. 
- Add half the parmesan to the sauce pan and continue to stir. 
- Add the xanthan gum, season with salt and pepper and stir for additional 2 minutes as the sauce thickens. 
- TIP: For the dish we used our 6 inch skillet. 
- Layer some of the fontina cheese mixture into the bottom of the skillet and make a layer of zucchini on top. Sprinkle with some cheese and season with salt and pepper. 
- Repeat the process until all the fontina mixture, zucchini and parmesan is used ensuring to save some parmesan to sprinkle on the top before place in the oven. 
- Bake at 375 until the cheese is golden brown on top, about 22-25 minutes.