Preheat your oven to 425°F.
Grab a 12-hole Yorkshire pudding tray or muffin tray.
Add 1 teaspoon of vegetable oil or beef drippings to each compartment.
Place the tray in the oven to heat up.
In a blender, combine the eggs, milk, flour, and salt.
Blend until smooth and well combined.
Pour the batter into a measuring jug and let it rest in the refrigerator for at least 30 minutes.
Once the oil is incredibly hot and almost smoking, carefully pour the batter evenly into each compartment of the hot tray.
Do this quickly yet carefully to retain the oil’s heat.
Return the tray immediately to the oven.
Bake for 20-25 minutes or until the puddings are well-risen, golden, and crisp.
Avoid opening the oven door during the cooking process to prevent them from collapsing.
Carefully remove the tray from the oven.
Allow the Yorkshire puddings to cool slightly before removing them from the tray.
Serve them immediately while they are still warm and crispy.