Preheat oven to 450 degrees.
Mix dry ingredients together.
Add in shortening and mix until crumbly.
Add in milk and mix until a ball forms.
Turn out dough onto a well floured surface. Dust more flour over the top of the dough to keep it from sticking while rolling out.
Roll out to 1" thickness. Cut biscuits. Place biscuits on a lightly greased baking sheet.
If baking now---place baking sheet in the oven and bake 12-15 minutes until golden brown.
If freezing---place cut biscuits on a baking sheet and place in the freezer for 1-2 hours. After they are frozen, remove the frozen biscuits from the baking sheet and place in a zip top bag. Label bag and place back into the freezer.
To bake frozen biscuits--- place the biscuits on a baking sheet. You can let them thaw for 30 minutes and then bake 12-15 minutes until golden brown OR you can bake them frozen 15-25 minutes depending on the size you made your biscuits.