For the bread:
1 3/4 cups flour
1/2 teaspoon cornstarch
1/2 teaspoon baking powder
1/4 teaspoon baking soda
1/2 teaspoon salt
1/2 cup canola oil
1 cup sugar
2 large eggs
1 teaspoon vanilla
1/3 cup sour cream
1/3 cup buttermilk

For the apple filling:
2 medium apples, peeled, cored and diced
2 tablespoon sugar
2 tablespoons lemon juice
1 teaspoon ground cinnamon
1 teaspoon ground nutmeg
1/2 teaspoon ground ginger
1/2 teaspoon ground allspice
For the cinnamon-brown sugar mixture:
1/3 cup brown sugar, packed
2 teaspoons cinnamon

For the glaze:
1 cup powdered sugar
1 tablespoon corn syrup
1-2 teaspoons water