Flaky Layer Biscuits - cooking recipe

Ingredients

2 1/4 cups flour
1 tablespoon baking powder
1 teaspoon salt
1 teaspoon sugar
1/2 teaspoon cream of tartar
1/2 cup butter, grated
3/4 cup buttermilk

Preparation

Preheat oven to 400.
Sift together dry ingredients into a large bowl.
Grate butter into dry ingredients and combine in 2 or 3 batches.
Add buttermilk and mix until mixture is all crumbles. Hand knead/fold until all remaining dry ingredients are combined into a single ball.
Turn out dough ball onto a floured surface and roll out into a rectangle approximately 1/2\" thick. Fold thirds , rotate 1/4 turn and repeat until dough has been rolled and folded 5 - 7 times. Roll out final time 1/2\" and cut biscuits.
Place on baking tray (optionally, brush top of biscuits with melted butter) and put in oven for 15 - 18 minutes until golden brown on top.