Preheat your oven to a cozy 325 degrees F.
In your stand mixer, mix the butter and granulated sugar on high until they're smooth and well combined.
Introduce eggs one at a time, mixing on medium after each addition to ensure they're all feeling the love.
Let the vanilla extract join the party, blending into the butter mixture on medium speed.
Gradually add the cake flour, a cup at a time, continuing to mix on medium.
Pour in the heavy whipping cream and mix until everything's mingling nicely.
Get your bundt pan all dressed up with non-stick baking spray.
Pour the batter into the pan, then give it a gentle pat on the counter to let any shy air bubbles escape.
Bake on the middle rack for 1 hour and 20 minutes. Test the cake's readiness with a toothpick—if it doesn't come out clean, cover the cake with foil and give it another 7-8 minutes.
Let the cake cool on the counter for at least 1 hour before turning it upside down.
Finally, give it a glamorous dusting of powdered sugar.