5
While the beef rests, prepare the Yorkshire puddings. Preheat the oven to 450ºF (220ºC). Combine the eggs, flour, and milk in a bowl and whisk until smooth. Let the batter rest for 30 minutes. In the meantime, add approximately 1 teaspoon of vegetable oil to each well of a 12-cup muffin tin, and heat the tin in the oven for 5 minutes or until smoking hot. Carefully pour the batter into the heated muffin cups, filling each about halfway, and bake for 18-20 minutes or until puffed and golden brown.