Place 2 tablespoons filling on center of each crepe. Roll edges up and over from either side. Blintzes may be cooked at once or, if not ready to serve, placed seam side down in a covered dish and chilled.
Melt 1/2 tablespoon oil and 1/2 tablespoon butter in a skillet. Put blintzes in skillet, seam side down. Fry to a golden brown, turning once. Sprinkle with sugar and cinnamon. You may pass sour cream to put on top of blintzes.