Sounds impossible but you can make a grilled cheese sandwich with only one slice of bread. The trick is to cover the cheese with a non-melting substance like ham. I like tavern ham for this sandwich; always tasty and the light grilling of it only enhances its flavor.
I use a slice of gf sourdough bread, great texture and flavor. Not two; just one. I prefer less bread these days and it is less calories too. You can get into this very specific style of bread baking (gf sourdough) by looking at some online groups; there are several on fb. I particularly love bakerita.com; her gf sourdough bread is easily my favorite bread these days. I bake a loaf about every 3-4 weeks. I slice and freeze most of the loaf and defrost it for my daily lunch sandwich. Use the bread you like to eat. This is a sturdy bread and responds well to the grilling process; the back side of it gets golden brown from the grilling and it still tastes fantastic. It is so easy to do a 10-year-old could make this delightful treat!
I use a variety of cheeses; I especially love Swiss, Munster, Gouda or provolone. Sometimes I use one slice of one and one of a second type of cheese. Aldi’s is a great place to get the tavern ham and the pre-sliced deli cheese.
I favor high quality French mustard, but a sturdy brown mustard is a great choice. If it’s all you have, I suppose yellow mustard works, but you can do better!

Angie’s Griddled Ham and Cheese Sandwich

Ingredients:

1 slice bread
4-6 slices (thin ones) of tavern ham
1 1/2 slice cheese
1 -2 tsp. butter
Directions: spread mustard on one side of bread. Heat a nonstick griddle or frying pan. Add butter; as soon as it melts lay the bread down in it and swirl around; you can use a butter knife to spread it on the bread if it is soft. Then layer cheese on it followed by folded ham slices. Grill for 1-3 minutes to brown the bread and warm it. Use a spatula to gently flip it over. Grill for 1 minute to melt the cheese and brown the ham slices slightly. If the bread bottom isn’t browned enough flip it back for 1-2 minutes more. Serve and enjoy!

This looks delicious – also, thank you for the bakerita.com recommendation. I’m on the gf journey and it is not easy to find recipes that appeal just yet..
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I simply adore this sandwich; never get tired of it. And it is partially due to the great bread made with Rachel’s gf sourdough bread recipe. Wildly better than any other gf bread and so versatile. Makes great avocado toast too and I use her recipe to make raisin bread and a spiral cinnamon bread. Well worth the ingredients and the rise time; I let it rise while I do other https://myworldwithoutwheat.com/2023/07/26/blueberry-muffins-delicious/.
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