This is supposed to make 30 muffin sized ones - I have never tried it myself.
Yorkshire Pudding
10 eggs
5 cups milk
5 cups all-purpose flour
1 tablespoon and 2 teaspoons salt
5 cups beef drippings
Preheat the oven to 450 degrees F (220 degrees C). Place about a tablespoon of beef drippings into each cup of a 6 cup muffin tin.
In a medium bowl, whisk eggs until well blended. Stir in the milk, flour and salt. Fill the muffin cups about half way.
Bake for 15 minutes in the preheated oven, then reduce the oven temperature to 350 degrees F (175 degrees C) and bake for an additional 15 minutes.
Metric:
10 eggs
1 liters milk
625 g all-purpose flour
30 g salt
1.2 kg beef drippings