Baking a Delicious Swedish Apple Cake

Name: Baking a Delicious Swedish Apple Cake
Cuisine: European
Ingredients: Cake; 1/2 cup unsalted butter (softened); 1 cup granulated sugar; 2 large eggs; 1 teaspoon vanilla extract; 1 1/2 cups all-purpose flour; 1 teaspoon baking powder; 1/2 teaspoon salt; 1/2 cup whole milk; 3 large apples (peeled, cored, and thinly sliced); Topping; 1/4 cup granulated sugar; 1/2 teaspoon ground cinnamon; 1/4 cup sliced almonds (optional)