Maple Blondies with Maple Brown Butter Icing

Name: Maple Blondies with Maple Brown Butter Icing
Prep time: 30 min
Cook time: 1 h
Total time: 1 h
Yield: 16 portions
Ingredients: unsalted butter; 230 g unsalted butter; 120 g maple syrup, pure; 200 g dark brown sugar; 2 tsp vanilla extract, natural; 1 egg; 340 g all purpose white flour; 1 tsp salt; 50 g unsalted butter; 100 g maple syrup, pure; 135 g icing sugar; ¼ tsp salt