
Preheat oven to 350°F (175°C).
Lightly grease a 9×13-inch baking dish with non-stick spray.
In a large mixing bowl, combine the eggs, brown sugar, caramel toppings, and melted butter. Whisk until fully blended and smooth.
Fold in the pecan halves, ensuring they are evenly coated.
Pour this mixture into the prepared baking dish and spread out evenly.
In a separate bowl, combine the butter pecan cake mix and melted butter. Stir until the mixture resembles thick crumbs.
Evenly sprinkle this crumb mixture over the pecan filling layer.
Bake in the preheated oven for 25–30 minutes, or until the top is golden and the edges are bubbling.
Allow the cake to cool for 15–20 minutes before serving.
Serve warm for best gooey texture, especially with a scoop of vanilla ice cream or extra drizzle of caramel sauce.