Preheat oven to 350ºF.
Grease 13x9” baking pan.
In large bowl, combine cake mix, oil and egg; beat on medium speed until
crumbly.
Stir in nuts.
Reserve 1 ½ cups crumb mixture.
Press remaining crumb mixture on bottom of prepared plan.
In small saucepan over medium heat, combine remaining ingredients.
Cook and stir until chips melt.
Pour chocolate mixture evenly over prepared crust.
Sprinkle reserved crumb mixture evenly over top.
Bake 25-30 minutes or until set.
Cool. Cut into bars.