Peach Crumble Cake - Nordic Ware

Ingredients

• For Crumble Topping:
• 2 Tablespoons unsalted butter, melted
• 1/ 4 cup flour
• 2 Tablespoons brown sugar
• 1/ 4 cup chopped pecans
• 1/ 4 teaspoon sea salt
• For Cake:
• 1 stick unsalted butter, +more for pan
• 2 peaches, sliced
• 1/ 2 cup powdered sugar
• 1/ 2 cup light brown sugar
• 1 cup flour
• 1 teaspoon baking powder
• 1/ 2 teaspoon salt
• 1/ 2 teaspoon grapefruit zest, finely
• 1 Tablespoon grapefuit juice
• 1/ 2 teaspoon vanilla
• 1 egg
• 1 egg white
• 1/ 2 cup plain yogurt + 2 Tablespoons