In the bowl of a stand mixer fitted with the paddle attachment, beat cream cheese, sugar, and salt at medium speed until thick, smooth, and creamy, stopping to scrape bottom and sides of bowl and paddle. With mixer on medium-low speed, add cold cream in a slow, steady stream, beating just until combined. Thoroughly scrape bottom and sides of bowl and paddle.

Switch to the whisk attachment. Add vanilla paste or extract, and beat at medium-low speed until combined. Gradually increase mixer speed to high, beating until thick, fluffy, stiff peaks form. Use immediately.