Dice the butter into 1/2" cubes and put it in the flour mixture. Using a pastry cutter, cut the butter into the flour mixture until it resembles a coarse meal.
1/4 cup chilled unsalted butter
Gently fold in the cinnamon chips and apples. Then in a measuring cup, whisk together buttermilk, egg, and vanilla extract.
1/3 cup cinnamon chips, 1 cup peeled and cubed granny smith apples, 2/3 cup buttermilk, 1 large egg, 1/2 teaspoon vanilla extract
Make a well in the center of your flour and apple mixture then pour in the buttermilk mixture.
Using a wooden spoon, start mixing the mixture together until just combined.
Pour out the mixture onto a floured surface and press out into an 8" circle.
Take a sharp knife and cut the dough into wedges and place them on the prepared baking sheets.
Bake for 18-22 minutes, or until slightly golden brown.
Let cool on baking sheet for 5 minutes before transferring them to a wire cooling rack to cool completely.