INGREDIENTS
Topping:
Cooking spray
3/4 cup
sugar
1/4 cup
water
3 cups
(1/4-inch-thick) slices peeled Rome apples (about 2 large)
1/4 cup
chopped walnuts
Cake:
5 3/10 oz
cake flour (about 1 1/3 cups)
1 1/2 tsp
baking powder
1/4 tsp
salt
2/3 cup
sugar
3 tbsp
butter, softened
2
large egg yolks
1 tsp
vanilla extract
1/2 cup
1% low-fat milk
3
large egg whites