Dear Charmian,
See the recipe below, I hope it is of use !
ROYAL BAKING MIX MASTER RECIPE
7 cups flour
2 tsp salt
3 tbsp Royal Baking Powder
1 1/2 cups (3/4lb) any high grade vegetable shortening (do not use butter)
Sift the dry ingredients together in a bowl or on a large sheet of paper...