Add the flour, salt, thyme, and rosemary to a large bowl, and whisk to combine. In another bowl, beat the eggs and milk together with a whisk.
Add the milk mixture to the flour mixture, and stir well until smooth. Cover, and place in the fridge for 30 minutes. Preheat oven to 425 F.
Add 1 teaspoon of oil to each cup in a 12-slot muffin tin. Place this in the oven for 10 minutes. Take the batter out of the fridge, and stir well. Remove the muffin tin from the oven, and pour ¼ cup of batter into each muffin slot.
Return the muffin tin to the oven, and bake for 20 minutes. Do not open the oven during the cooking time. The puddings should be golden brown and billowy.