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 pieces
Ingredients: 8 oz unsalted butter; 4 oz pure maple syrup; 7 oz dark brown sugar; 2 tsp natural vanilla extract; 1 large egg; 12 oz all-purpose flour; 1 tsp salt; 2 oz unsalted butter; 3 ½ oz pure maple syrup; 5 oz confectioners sugar; ¼ tsp salt