Spoon a tablespoon of filling in the center of each pancake. Fold both sides in towards the middle and roll up into a rectangular shape.
Melt enough butter in a skillet so blintzes float slightly over the butter. Fry the blintzes slowly on one side until golden brown, then turn and fry on the second side. If the blintzes are frozen, don't thaw them. Fry them frozen, but keep the heat very low, cover the pan for the first 7 to 8 minutes, then turn them over and fry uncovered on the second side. To bake, set them on a baking sheet and bake in a 425 degree oven until golden brown.
Finishing Touches: Serve cheese or fruit-filled blintzes with sour cream or jam. Serve savory ones according to what goes with them, like some sour cream and chopped cilantro for the meat-filled blintz. Serve with a light fresh tomato vinaigrette for the cheese and herbed blintzes or serve these alongside a steamed green vegetable.
HERBED BLINTZ FILLING
In a mixing bowl combine any of the stuffings. Fill and fry.
SOUTHWEST BLINTZ FILLING
Cook onions in vegetable oil. When tender, add chili or cumin, cooked meat and jalapeno peppers to taste; season with salt and add sour cream.