主料
面粉 ：2 cup盐 ：3/4 tsp
黄油 ：2tbsp
buttermilk ：1cup
baking powder ：4tsp
辅料
baking soda ：1/4克shortening ：2tbsp
1. Pre heat oven to 230C
2. Mix baking powder, baking soda, salt and flour
3. knead in chilled butter and shortening till it resembles bread crumbs
4. make a well, pour in chilled buttermilk. Stir until dough just comes together
5. on a floured surface, fold dough over gently, no more than 5-6 times
6. roll out to 1 inch thick , cut with cookie cutter
7. bake for 15-20 mins at 230 C