Browned Butter Toffee Almond Blondies

Name: Browned Butter Toffee Almond Blondies
Ingredients: 1 teaspoon vanilla extract; 1 cup all-purpose flour; ½ cup unsalted butter; 1 cup brown sugar, packed; 1 large egg; ½ teaspoon almond extract; ⅓ cup toffee bits; ⅓ cup sliced almonds (reserve a few for the top); ½ teaspoon baking powder; ⅛ teaspoon salt