This was quite tasty. However, the custard did not set up when cooking it under a low broiler, so it was a little soupy. I ate it anyway, with a spoon. It's possible I added a bit too much milk...am living in Spain in a furnished rental that lacks measuring cups!
Very good and simple to make. I used a mix of swiss and parmesan cheeses. I reserved a bit more than the 1/3 cup of cooking milk, and I'm glad that I did, because I used about 1/2 cup. This might be nice with some smoked paprika sprinkled on top. I think I may try that next time. Thanx for posting!