Applebee's Maple Nut Blondie with Cream Sauce

Name: Applebee's Maple Nut Blondie with Cream Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 10 tablespoons butter (melted); 2 cups brown sugar; 2 teaspoons vanilla; 2 eggs; 2 cups flour; 1 teaspoon baking powder; ¼ teaspoon baking soda; ½ teaspoon salt; ½ cup chopped walnuts or pecans; 1 ½ cups white chocolate chips; ice cream (butter pecan or vanilla); ⅓ cup butter; 1 cup sugar; 8 ounces cream cheese; ¼ cup real maple syrup; 2 tablespoons brown sugar; ½ cup chopped walnuts (or pecans)