Moist Apple Cinnamon Loaf Bread with Spiced Apple Layers

Ingredients

• 1 3/4 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 teaspoon ground cinnamon
• 1/2 cup unsalted butter, at room temperature
• 3/4 cup granulated white sugar
• 2 large eggs, at room temperature
• 3/4 cup buttermilk
• 2 teaspoons vanilla extract
• 2 medium apples, peeled, cored, and diced into 1/2-inch pieces
• 1/3 cup brown sugar
• 1 tablespoon ground cinnamon