In a large mixing bowl, combine the flour and salt.
Make a well in the center and add the eggs.
Gradually whisk in the milk until the batter is smooth and free of lumps.
Cover the bowl and let the batter rest at room temperature for at least 30 minutes.
Preheat your oven to 450°F (230°C).
Place a muffin tin or a Yorkshire pudding tin in the oven to heat up.
Once the tin is hot, carefully remove it from the oven.
Add about 1 teaspoon of vegetable oil or beef drippings to each cup of the tin.
Return the tin to the oven and heat the oil until it is very hot and almost smoking, about 5 minutes.
Quickly pour the batter into the hot oil-filled cups, filling each about halfway.
Place the tin back in the oven and bake for 15-20 minutes, or until the puddings are puffed up and golden brown. Do not open the oven door during baking, as this can cause the puddings to collapse.
Enjoy your meal!