Apple Cinnamon Loaf

1/3 cup brown sugar (not packed)
1 teaspoon ground cinnamon
2/3 cup white sugar
1/2 cup butter, softened
2 eggs
1 1/2 teaspoons vanilla extract
1 1/2 cups all-purpose flour
1 3/4 teaspoons baking powder
1/2 cup milk
1 apple, peeled and chopped

• Preheat oven to 350 degrees. Grease and flour a 9 x 5-inch loaf pan. 
• Mix brown sugar and cinnamon together in a bowl and set aside. 
• Beat white sugar and butter together in a bowl using an electric mixer until smooth and creamy. 
• Beat in eggs, 1 at a time, until incorporated; add vanilla extract.
• Combine flour and baking powder together in another bowl; stir into creamed butter mixture. 
• Mix milk into batter until smooth. 
• Pour half the batter into the prepared loaf pan. 
• Next add half the apples and half the brown sugar cinnamon mixture. 
• Lightly pat apple mixture into batter. 
• Pour the remaining batter over apple layer 
• Top with remaining apples and add more brown sugar/cinnamon mixture. 
• Lightly pat apples into batter; swirl brown sugar mixture through apples using a finger or spoon.
• Bake in the preheated oven until a toothpick inserted in the center of the loaf comes out clean, 30 to 40 minutes.