Creating Chocolate Gooey Butter Cake can be a joyful experience if you follow these straightforward steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Grease a 9×13-inch baking dish.
2. Cream Butter and Sugars: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
3. Add Eggs and Vanilla: Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
4. Mix Dry Ingredients: In another bowl, whisk together the flour, cocoa powder, baking powder, and salt to combine.
5. Combine Mixtures: Gradually add the dry mixture to the wet mixture, stirring until just combined. Do not overmix.
6. Pour into Baking Dish: Spread the batter evenly in the greased baking dish.
7. Bake: Bake in the preheated oven for 35-40 minutes. The top should be set but still gooey in the center; a toothpick inserted should come out slightly muddy.
8. Cool: Remove from the oven and let it cool in the pan for about 10-15 minutes.
9. Dust with Powdered Sugar: Before serving, dust with powdered sugar for a delightful finish.

Enjoy your baking process, and soon your kitchen will be filled with the amazing aroma of Chocolate Gooey Butter Cake.