Step 1

Preheat the oven to 350 degrees Fahrenheit. Spray a 9x13 baking pan with pan spray and set aside.

Step 2

In a large bowl, whisk together the flour, cocoa powder, sugar, baking soda, and salt.

Step 3

Add the vinegar, vanilla, oil and water and stir until just combined.

Step 4

Pour the batter into the prepared baking pan and bake for 35-40 minutes, until the center of the cake springs back when lightly pressed on or a toothpick comes out clean.

Step 5

Let the cake cool completely before topping with the chocolate whipped cream.

Step 6

To make the whipped cream, add the cream, powdered sugar, and cocoa powder to a large bowl and beat until medium stiff peaks form. Spread evenly over the cake and enjoy!