Preheat the oven to 375℉. Pre-slice cold butter on a cutting board.
Add sprouted spelt flour, cream of tartar, baking soda, mineral salt, and coconut sugar into a mixing bowl and whisk gently to combine.
Add butter to the dry ingredients, then use a pastry cutter to cut in the butter (you can also use a food processor).
Cut in butter until the mixture resembles coarse crumbs.
Add sour cream to dough and stir gently to combine.
Turn out dough onto a lightly floured surface and knead gently.
Knead until dough changes from sticky and ragged to smooth and integrated.
Flour the dough and roll out to between ¼"-½" thick.
Use the biscuit cutter to cut dough into rounds.
Assemble shortcakes on baking sheet.
Bake for 14-16 minutes or until golden.