Cranberry Apple Cinnamon Squares

These squares have some nice fall flavors: cranberries, apples, and cinnamon. They are incredibly moist, with a fluffy, cake-like texture. The recipe is adapted from one I found in a recipe book of squares. They are the perfect balance of not too sweet and not too tart.

Cranberry Apple Cinnamon Squares
1/4 cup butter or hard margarine
1/2 cup granulated (white) sugar
1/2 cup packed light brown sugar
1 large egg
1 teaspoon vanilla extract
1/4 cup plain yogurt (I used fat-free Greek)
1 cup all-purpose (plain) flour
1 teaspoon baking powder
1/4 teaspoon salt
1/4 teaspoon ground cinnamon
3/4 cup shredded cranberries, fresh or frozen
1 medium apple, peeled and chopped
2 Tablespoons granulated (white) sugar
1 teaspoon ground cinnamon

Preheat oven to 350◦F. Grease or line an 8x8 inch square pan.
In a large bowl, cream the butter and sugars together. Beat in the egg and vanilla, then the yogurt. Stir in the flour, baking powder, salt, and cinnamon. Gently stir in the cranberries and apple. Spread in prepared pan. 
Combine the remaining sugar and cinnamon together and sprinkle evenly over batter. Bake for about 30 minutes, until a toothpick inserted in the center comes out clean.