Put the pitted dates in a heat-safe bowl. Pour the ¼ cup of boiling hot water over them. Quickly cover the bowl with a glass plate. Let the dates sit for about 10 minutes to soften.
10 (140 g) pitted Medjool dates, ¼ cup boiling hot water
Put the softened dates and their soaking liquid in a small food processor or blender. Blend until completely smooth and creamy. Scrape down the sides as needed to make sure everything is fully blended.
Once blended, let the date paste cool to room temperature on the counter. This helps prevent the cream cheese and butter from melting when you add the date paste.
In a large mixing bowl, add the cooled date paste, softened cream cheese, and softened butter. Using an electric hand mixer, beat everything together until the mixture is smooth and fluffy.
12 oz cream cheese, 1 stick (113 g) softened butter
Add the vanilla extract and the salt. Beat again until well incorporated.
1 tsp vanilla extract, ¼ tsp kosher salt
Chill the frosting for at least half an hour to help firm it up before adding to a cake or cupcakes.