Sweet Potato Biscuit Pillows with Honey and Coconut Oil

Name: Sweet Potato Biscuit Pillows with Honey and Coconut Oil
Ingredients: 6 1/2 ounces (1 1/4 cup) all-purpose flour (I use King Arthur); 2 1/3 ounces (2/3 cup) brown rice flour; 1 tablespoon baking powder; 2 teaspoons instant yeast (Rapid-Rise); 1 teaspoon kosher salt; 3 tablespoons unsalted butter, very cold; 3 tablespoons coconut oil; 1 medium-small sweet potato (big enough to yield 1/3 cup mashed potato); 1 large egg; 2/3 cup buttermilk (I used 2% fat buttermilk); 2 tablespoon honey (orange-flavored is wonderful); 1 teaspoon ground cardamom