Step 1: In a medium mixing bowl, beat the softened cream cheese with an electric mixer (handheld or stand mixer) on medium speed for 1-2 minutes, until it is completely smooth and light. Scrape down the sides of the bowl as needed.
Step 2: With the mixer on low speed, gradually add the sifted powdered sugar, about a quarter at a time, allowing each addition to fully incorporate before adding more. Once all sugar is added, increase speed to medium and beat for another 1-2 minutes until the mixture is light, fluffy, and well combined.
Step 3: Add the vanilla extract and an optional pinch of salt. Beat on low speed for about 30 seconds, just until fully incorporated. Do not overmix.
Step 4: Taste the cream cheese crepe filling and adjust sweetness or vanilla if desired. If too thick for your preference, you can add a tablespoon of milk or cream and beat until combined (though it should be perfectly spreadable at this point).
Step 5: Use immediately to fill warm crepes. Spread about 2-3 tablespoons of filling onto one half of a crepe, then fold or roll. Serve with your favorite toppings like fresh fruit, syrups, or whipped cream. Enjoy your quick fluffy cream cheese crepe filling!