Can you provide me with a list of the ingredients needed for this cake? I want the list to be written as an advertisement as well, so make it enticing to a reader.


Today, we are gonna present our rich, decadent chocolate cake, with a delectable layer of chocolate crumb topping that adds a satisfying crunch to every bite. 

The ingredients used for the savory treat are listed:
- fluffy butter
- farm-fresh eggs
- flour
- baking powder, baking soda, salt
- vegetable oil
- granulated sugar
- powdered sugar
- sweet vanilla
- smoothly brewed coffee
- unsweetened cocoa powder
- sour cream

When finished, the cake comes out moist and almost brownie-like. The crumble is drier and has a hint of crunch, creating a magnificent combination for your taste buds.