For the cake:

1 cup whole wheat flour
1/2 cup AP flour
1/8 teaspoon salt
1/2 cup maple sugar, demerara, sucanat, rapadura, or brown sugar
2 teaspoons baking powder
3/4 cups whole milk
1 large egg, lightly beaten
1 teaspoons pure vanilla extract
1/4 cup (1/2 stick) butter, melted

For the topping:

1/2 cup (1 stick) butter, softened
1/2 cup maple sugar or sweetener of choice
1 tablespoons AP flour
1 1/2 teaspoons cinnamon
6 tablespoons chopped pecans, optional

For the maple cream cheese frosting:

4 oz. (1/4 lb.) cream cheese, softened
3-4 tablespoons pure maple syrup
1/4 teaspoon pure vanilla extract
1-2 tablespoons whole milk