Best Death by Chocolate Cake Recipe - How to Make Death by Chocolate Cake

Ingredients

• Cooking spray
• 4 c. all-purpose flour
• 2 c. granulated sugar
• 1 c. packed brown sugar
• 2 1/4 c. Dutch-processed cocoa powder
• 3 tsp. baking soda
• 3 tsp. baking powder
• Pinch of kosher salt
• 1 1/2 c. melted butter
• 6 large eggs, lightly beaten
• 2 1/2 c. strong black coffee
• 2 1/2 c. buttermilk
• 1 tbsp. pure vanilla extract
• 3 c. butter, softened
• 7 1/2 c. powdered sugar
• 2 1/4 c. cocoa powder
• 3/4 c. heavy cream (plus more if necessary)
• 4 c. semisweet chocolate chips, divided