A giant chocolate chip cookie cake topped with silky chocolate ganache and a dramatic spiderweb design. This easy, crowd-pleasing Halloween dessert comes together in about 45 minutes and looks like it took hours.
Don’t overbake the cookie; it continues to cook from residual heat. Let the ganache rest until warm to the touch before pouring. Use a light hand with the toothpick for clean web lines. Room temperature ingredients are important for best texture. The cookie cake tastes even better on day two.
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