Using a stand mixer with the paddle attachment, beat together cream cheese, powder sugar, and vanilla until light and fluffy. (If you don't have a stand mixer, use a hand mixer.)
Switch to the whisk attachment and slowly add in heavy whipping cream. Whip until fully incorporated. Scrape the side of the bowl as needed.
Beat topping until it thickens and forms soft peaks, about 3-5 minutes. It should have a light, creamy texture.
Spread topping over cake.
Refrigerate any cake frosted with this frosting.
This cake makes enough to frost a 9x13 cake or a 2 layer 8" round cake.The calories shown are based on the frosting making about 15 servings, with 1 serving being 1/15 of the recipe. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**