INGREDIENTS
3
Eggs, large
2 tbsp
Maple syrup, real
1/2 cup
All-purpose flour
2 tsp
Baking powder
1/2 tsp
Baking soda
1/4 cup
Brown sugar, light packed
2 1/2 cups
Cake flour
1 1/2 tsp
Cinnamon, ground
1/2 cup
Confectioners' sugar
1 1/2 cups
Granulated sugar
3/4 tsp
Kosher salt
1 1/2 tsp
Vanilla extract, pure
3/4 cup
Walnuts
15 tbsp
Butter, unsalted
1 1/4 cups
Sour cream