In a large bowl, whisk together the flour, baking powder, cinnamon, and salt.
Step 1
Grate the frozen butter and add it to the flour mixture. Use a pastry cutter or your fingers to blend until it resembles pea-sized crumbs. Chill this mixture while preparing the wet ingredients.
Step 2
In a separate bowl, whisk together the heavy cream, brown sugar, egg, and vanilla extract.
STEP 3
Pour the wet ingredients over the dry ingredients, add the chocolate chips, and stir until just moistened.
STEP 4