Best Checkerboard Cake Recipe - How to Make Checkerboard Cake

Ingredients

• Cooking spray, for pan
• 1 box vanilla cake mix, plus ingredients called for on box
• 1 box chocolate cake mix, plus ingredients called for on box
• 1 c. butter, softened
• 2 1/2 c. powdered sugar
• 3/4 c. cocoa powder
• 2 tsp. pure vanilla extract
• pinch of kosher salt
• 1/4 c. heavy cream (plus more if necessary)