1Mix flour, eggs and milk in a blender until smooth. Let sit for 1 hour, then put butter in a casserole dish and melt. Add batter.
2Preheat oven to 375 degrees F (190 degrees C).
3Bake pudding for 20 minutes in preheated oven, then lower temperature to 350 degrees F (175 degrees C) and bake for another 15 minutes. When golden, cut up and serve.