New York Style Crumb Cake

Bahan-bahan (12 porsi)

• 1 cup (200g) packed light or dark brown sugar
• 1/2 cup (100g) granulated sugar
• 1 Tablespoon ground cinnamon
• 1/2 teaspoon salt
• 1 cup (16 Tbsp; 226g) unsalted butter, melted
• 2 and 1/2 cups (313g) all-purpose flour (spooned & leveled)
• 2 and 1/2 cups (313g) all-purpose flour (spooned & leveled)
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 3/4 cup (12 Tbsp; 170g) unsalted butter, softened to room temperature
• 1 cup (200g) granulated sugar
• 3 large eggs, at room temperature
• 1 cup (240g) full-fat sour cream, at room temperature*
• 2 teaspoons pure vanilla extract
• optional: confectioners’ sugar for topping