1. Pre-heat oven to 400 F. In a cup add milk and vinegar; allow to sit at least 5 minutes or just use 1 cup buttermilk if on hand. Meanwhile in a medium sized bowl add flour, baking powder, baking soda and salt, mix well. Add shortening and mix until dough is course. Add milk mixture or buttermilk, mix fast not kneading, it is important not to knead or mix this dough a lot.
2. Add dough onto a non-stick baking mat or lightly floured board. Dough should be sticky so do not add more flour. With a biscuit cutter or glass quickly cut biscuits. If you like fluffy biscuits then do not roll the dough to flat. Place biscuits on a cookie sheet and bake 10-12 minutes, until golden.
