Instructions

1. In a large bowl, combine flour, sugar, baking powder and salt.
2. Grate frozen butter into the dry ingredients with a cheese grater and  combine with a pastry cutter, two forks, or your fingers until the mixture comes together in pea-sized crumbs. Add in the mix-ins and stir to coat with flour. Place in the refrigerator or freezer as you mix the wet ingredients together.
3. In a separate bowl, combine the sourdough starter, egg, vanilla, and heavy cream.
4. Fold the wet ingredients into the flour mixture. Be careful not to overwork the dough.
5. On a clean, lightly floured surface, roll the dough out into a circle about 8” in diameter. Cut the circle into 8 equal parts.
6. Place on a prepared baking sheet lined with parchment paper about 2” apart.
7. Put in the fridge for 30 minutes or up to 3 days.
8. When ready to bake, preheat the oven to 400°.
9. Bake for 20-25 minutes or until golden brown.