Small Batch Skillet Buttermilk Biscuits

Bahan-bahan (4 porsi)

• 1 cup all purpose flour
• 1 tsp baking powder
• 1/2 tsp salt
• 1/4 tsp baking soda
• 3 tbsp butter (cut into small pieces and frozen for at least 15 minutes)
• 1/2 cup buttermilk (very cold)