Maple-Iced Angel Food Cake Recipe

Ingredients:
For the Cake:

1 1/2 cups egg whites (from about 12 eggs), at room temperature
1 1/4 teaspoons cream of tartar
1/2 teaspoon salt
1 1/4 cups granulated sugar
1 1/8 cups sifted cake flour
1 teaspoon pure vanilla extract
3 tablespoons pure maple syrup

For the Icing:

1/2 cup pure maple syrup, more as needed
1 1/2 cups confectioners’ sugar

Directions:
Heat the oven to 375 [...]