Biskuit Ubi Jalar

Bahan-bahan (10 porsi)

• 1 lb . sweet potato ( 1 cup mashed, $1.29)
• 2.25 cups all-purpose flour (divided, $0.23)
• 1 Tbsp baking powder ($0.12)
• 1 Tbsp sugar ($0.02)
• 3/4 tsp salt ($0.02)
• 1/4 tsp ground nutmeg ($0.02)
• 8 Tbsp butter, frozen (1 stick, $1.04)
• 1 cup whole milk ($0.32)