Step 1: Prep the Oven and Pan

• Preheat your oven to 350°F (175°C).

• Lightly grease a 9×13-inch baking dish with butter or non-stick spray.

Step 2: Make the Cake Batter

• In a large bowl, combine the cake mix, melted butter, sour cream, eggs, and vanilla.

• Mix until smooth and lump-free.

Step 3: Add to Baking Dish

• Pour the chocolate batter into the prepared baking dish.

• Use a spatula to spread it evenly from edge to edge.

Step 4: Layer the Toppings

• Sprinkle the shredded coconut, chopped pecans, and chocolate chips evenly over the top.

• Use a spoon to swirl them lightly into the batter. Avoid overmixing—the swirls give the “earthquake” effect.

Step 5: Bake the Cake

• Bake for 35–40 minutes, or until a toothpick inserted in the center comes out clean or with moist crumbs.

• The top will have visible cracks—that’s part of the magic.

Step 6: Cool and Finish

• Let the cake cool in the pan for 10–15 minutes.

• Dust the top generously with powdered sugar.

Step 7: Serve

• Slice and enjoy warm for maximum gooeyness, or let it cool for a firmer texture.