Chocolate Mayonnaise Cake

Preheat your oven to 350°F (175°C).

In a large bowl, combine the all-purpose flour, granulated sugar, baking soda, salt, and cocoa powder.

Whisk the dry ingredients together until well combined.

Pour in the hot coffee, mayonnaise, and vanilla extract.

Mix with a spatula just until the batter is combined. Be careful not to overmix.

Grease a 9x13 inch baking dish with butter or non-stick cooking spray.

Pour the cake batter into the prepared dish and spread it evenly.

Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.

Remove the cake from the oven and let it cool completely before frosting.

To make the frosting, place the semi-sweet chocolate chips in a microwave-safe bowl.

Microwave in 30-second intervals, stirring in between, until the chocolate is completely melted and smooth.

Set the melted chocolate aside to cool slightly.

In a separate large bowl, add the softened salted butter.

Using a hand mixer, beat the butter on medium-high speed until it's light and fluffy.

Add the vanilla extract and powdered sugar to the whipped butter.

Pour in the cooled, melted chocolate.

Mix with the hand mixer one last time until the frosting is fully combined, smooth, and creamy.

Spread the frosting evenly over the top of the cooled cake.

Slice and serve.