Gingered White Nectarine and Pluot Galette

Ingredients

• 2 1/2 Cups All-Purpose Flour
• 1 1/4 Teaspoons Kosher Sea Salt Flakes , divided
• 1/2 Cup (2 Sticks) Chilled Unsalted Butter, diced
• 1/2 Cup White Sugar , plus 1 teaspoon, divided
• 1/4 Cup Ice Water
• 1/2 Pound Dried White Nectarine
• 1/2 Pound Dried Pluot
• Boiling Water
• 1 1/2 Teaspoons Lemon Juice, freshly squeezed
• 1 Tablespoon Cornstarch
• 1/4 Teaspoon Ginger Powder
• 1 Large Egg, lightly beaten
• Turbinado Sugar , for finishing
• Whipped Cream, for serving