Chesapeake Bay Potato Biscuits - Potato Goodness

Ingredients

• 310 g Prepared Mashed Potatoes (or 2 each Medium Russets)
• 1/2 c (120 g) Sour Cream
• 1 c (125 g) Cheddar Cheese, shredded
• 1/4 c (15 g) Green Onions, chopped
• 2/3 c (120 g) All-Purpose Flour
• 2-1/4 c (260 g) Cake Flour
• 1 tbsp (15 g) Baking Powder
• 1/4 tsp (2 g) Baking Soda
• 1 tbsp (30 g) Granulated Sugar
• 1-1/2 tsp (15 g) Salt
• 1/2 tsp (4 g) Granulated Garlic
• 2 tsp (15 g) Old Bay
• 7 tbsp (230 g) cold Unsalted Butter, cubed
• 1 large Egg, beaten with 2 tbsp of cold Water
• 2 tbsp Butter, melted
• 2 tsp Parsley (optional)
• 1 tsp Garlic (optional)