• Preheat oven to 350 degrees F.
• Line a 9 x 13 baking pan with foil, leaving enough to hang over the edges. Spray lightly with cooking spray.

For the Crust:

• In a large bowl, using a pastry cutter or fork, cut butter into sugar and flour until crumbly. Press evenly into prepared pan and bake on the center rack for 12 minutes.

For the filling:

• In a mixing bowl, stir together condensed milk and cocoa until well combined. Set aside.
• Sprinkle chocolate chips and pecans over the cooked crust, and pour chocolate condensed milk evenly over the top. Bake 15-18 minutes. Immediately sprinkle with mini chocolate chips.
• Allow to cool completely before cutting into 28 bars. Store in a tightly sealed container.