Sweet Potato Biscuits with Maple Butter

Ingredients

• 3 cup flour
• 2 tbsp. sugar
• 1 tbsp. baking powder
• 1 tsp. kosher salt
• ¾ cup cold butter, grated
• 1 cup mashed sweet potato (about 1 large potato), cold
• 1 cup buttermilk, cold
• ¼ cup milk
• 1 stick butter, softened
• ¼ cup brown sugar
• 2 tbsp. maple syrup
• 1 ½ tsp. pumpkin pie spice