Ingredients:
2 sticks unsalted butter, softened 
1/2 cup brown sugar, packed
2 cups all-purpose flour
1/2 tsp salt           
1 cup bittersweet chocolate chips
1 cup semi-sweet chocolate chips
1 14-oz can sweetened condensed milk
1/2 cup chopped pecans
1/2 cup raspberry preserves

Directions:

Preheat oven to 350 degrees.
Line 9X13 pan with nonstick foil.
Cream butter and sugar together.
Beat in flour and salt until crumbly.
Press 1 3/4 cups crumb mixture onto bottom of baking dish.
Bake for 10-12 minutes or until golden brown.
Stir nuts into reserved crumb mixture. Set aside.
Combine sweetened condensed milk and bittersweet chips in a microwave safe dish and heat on medium heat, in 30 second intervals in microwave until chips are melted. Stir until smooth.
Pour over hot crust and spread until even.
Sprinkle reserved crumb mixture over chocolate mixture.
Drop teaspoonfuls of preserves on top of crumb mixture.
Sprinkle with 1 cup semi-sweet chocolate chips.
Bake for an additional 25-30 minutes or until set.
Cool and cut into bars.

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