Beat the eggs. Add flour and mix well. Pour in milk, season with salt, and mix well. Set batter aside to rest for at least 15 min. or longer. Even a 24 hr. resting period would be fine.
Pre-heat the oven to 220°C/430°F. Fill each muffin tin hole with a teaspoon of oil and grease the sides. Put the tin in the oven to heat up thoroughly. Only remove from the oven when it is very hot.
Quickly pour batter into the muffin tin. Each cup should be half full. Quickly return muffin tin to the oven.
Bake for approx. 15 – 20 min. at 220°C/430°F, and do not open the oven door, or your puddings may collapse. Bake until crisp and golden, and serve immediately.