Maple Walnut Fudge

2 cups packed brown sugar
half of a 10 oz can evaporated milk
1/2 pound butter
2 cups powdered sugar
1 cup walnuts
1/2 teaspoon vanilla
1/2 teaspoon maple flavoring

Like a 9x13-inch pan with aluminum foil or parchment paper, then butter the foil or parchment; set aside. In a medium saucepan, combine sugar, butter and milk. Bring to a boil over medium heat. Reduce heat very slightly and boil exactly 10 minutes while stirring constantly. Remove from heat and add powdered sugar, vanilla and maple flavoring. Mix thoroughly with hand mixer on medium until thick and glossy - just a couple of minutes. Fold in walnuts and pour in prepared pan. Refrigerate until set.