Ingredients Grams Baker's %
Baking Powder 60 6.25
Cake Flour 120 12.5
Buttermilk Powder 198 20.6
Baking Soda 21.2 2.2
Shortening 285 29.7
Sugar 16 1.7
Butter 113 11.8
Salt 23 2.4
All-Purpose Flour 840 87.5

Preparation

Place all purpose flour, pastry flour, buttermilk powder, salt, sugar, baking powder and baking soda in a large bowl. Whisk to combine dry ingredients.

Cut in the shortening and butter to form a coarse, crumbly mixture. (You can also do this in a large food processor - or do it in two half batches - pulsing the processor to cut the fat into the flour.)

Preheat oven to 425°F. Place three cups biscuit mix in a medium sized bowl. In a well in the centre, stir in almost all the ice water. Form a soft dough by briskly stirring with a fork, adding in reserved ice water if required. Gently knead on a lightly floured board about eight times - briefly, do not overwork dough.

Roll or pat out to a thickness of 1/2". Cut into rounds between two and 2 1/2 inches.

Brush generously with melted butter or lightly with cream or milk before baking.

Place on ungreased baking sheet and bake until lightly golden brown, about 10-12 minutes. Serve hot.

These can also be patted into an eight inch square baking pan or a nine inch cast iron pan. Bake until golden, then cut into squares.