Peach Cobbler

• ½ in. fresh ginger, peeled, cut into pieces
• 1 ½ oz sugar
• 3 oz brown sugar
• ½ lemon, thin peel only, no white pith
• 20 oz frozen peaches
• 1 oz all-purpose flour
• ¼ tsp cinnamon
• ¼ tsp salt
• ⅛ tsp ground nutmeg
• 2 oz unsalted butter, diced

Biscuit Topping

• 7 oz all-purpose flour
• 3 ½ oz sugar
• ½ tsp salt
• 1 tsp baking powder
• 4 ½ oz plain Greek yogurt
• 1 large egg
• 2 tbsp turbinado sugar
  或 2 tbsp raw sugar