Wash your tomatoes and cut them into ½-inch wheels.
In three different bowls, get the coatings ready. Place the flour in one bowl. In another bowl, whisk the half-and-half and eggs. In the third bowl, mix the breadcrumbs, cornstarch, and salt.
Coat each wheel of tomato in the flour, then in the whisked eggs and half-and-half. Repeat once more, and then dip into the breadcrumb mix.
Pour the oil into a heavy pot and once it's hot (see our tips) fry the tomatoes for 3 to 5 minutes on each side, or until they're golden brown. You may need to do this in several batches, as you do not want to overcrowd the pan. Allow the slices to drain on paper towel before serving.