Cake Mix Recipes: Triple Chocolate Fudge Crumb Bars

Instructions:

1. Preheat oven to 350°F (175°C). Line a 9x13 inch baking pan with parchment paper, leaving an overhang on the long sides, and lightly grease.
2. In a large mixing bowl, combine the entire box of chocolate cake mix, the 2 lightly whisked eggs, and the 1/2 cup of melted butter. Mix just until a thick, uniform dough forms. Do not overmix.
3. Scoop out and reserve approximately 1 cup of the dough mixture; this will be used for the topping later. Set aside.
4. Stir 1/2 cup of the total semi-sweet chocolate chips into the remaining dough mixture in the bowl.
5. Transfer the dough mixture to the prepared pan. Use the back of a measuring cup or your fingers to firmly press the mixture evenly across the bottom of the pan, forming a solid crust.
6. In a separate, small bowl, combine the remaining 1/2 cup semi-sweet chocolate chips and the 1/2 cup milk chocolate chips. Melt until smooth and glossy (using a microwave or double boiler).
7. Remove the melted chocolate from heat and stir in the sweetened condensed milk, vanilla extract, and pinch of sea salt until completely smooth and incorporated.
8. Pour the chocolate-condensed milk filling evenly over the pressed crust in the pan. Spread gently with a spatula.
9. Crumble the reserved 1 cup of dough mixture evenly over the top of the fudge filling layer.
10. Bake for 30–35 minutes, or until the crumb topping looks golden brown and set, and the filling is bubbling slightly around the edges. A slight wobble in the center is acceptable.
11. Remove from the oven and allow the bars to cool completely on a wire rack for at least 2 hours at room temperature, or chill in the refrigerator, to ensure the fudgy filling sets properly. This step is non-negotiable.
12. Once fully cooled, use the parchment handles to lift the entire slab out of the pan. Slice into 12 squares using a sharp knife and serve.