Here's the Five Roses Flour recipe I used:
1 cup all purpose flour
1/2 tsp salt
1 cup milk
2 tsp roast drippings (in the batter)
2 tbsps roast drippings (in the pan)
I only had 1 tbsp of drippings so used olive oil for the rest.
Preheat oven to 450 F.
Combine flour and salt in a small mixing bowl, set aside. Beat eggs with a fork and add milk, along with 2 tsps roast drippings. Mix well and add to dry ingredients.
Beat at high speed with electric mixer for 2 minutes. (Hand mixing probably won't work)
Pour 2 tbsps drippings into a 9 X 9 baking pan. Place it in the 450 F oven and heat until almost smoking hot, about 5 minutes. Pour the batter in and immediately return to oven.
Bake until puffed and brown, 15 minutes.
You shouldn't open the oven door but I had to take a quick picture : )
Reduce heat to 350 F and continue baking 12 minutes more.
Turn off oven and let pudding dry an additional 10 minutes.
Serve this beauty immediately.