Easy Nutty Fudge Bars

Easy Nutty Fudge Bars Base 1 box yellow cake mix 1/2 cup butter, melted 2 eggs Topping 1/2 cup butter 1 cup dark chocolate chips 1 can (14 oz) sweetened condensed milk 1 can (12 oz) salted mixed nuts (2 1/4 cups) Heat oven to 350°F. Spray bottom only of 13x9-inch pan with cooking spray. In large bowl, stir Base ingredients until well blended. Press evenly in bottom of pan. To make Topping, in medium microwavable bowl, microwave 1/2 cup butter uncovered on High 30 to 60 seconds or until melted. Add chocolate chips; stir to melt. Microwave 15 seconds, if necessary to melt chips. Add condensed milk; stir until completely blended. Pour over base in pan, spreading evenly. Sprinkle with nuts. Bake 28 to 30 minutes or until topping is set. Cool completely, about 1 hour 30 minutes. Cut into 6 rows by 4 rows.