Combine ricotta cheese and mascarpone cheese together in a medium mixing bowl and using a hand mixer, mix on medium high speed for several minutes or until the mixture is smooth and creamy.
Add powdered sugar and vanilla extract and beat until combined and smooth. (Start on low speed to avoid a powdered sugar shower...)
Fold in all but two tablespoons of the mini chocolate chips. Cover and refrigerate until ready to serve. The dip is best after 1 hour but can be served in as little as 15 minutes if need be.
Just before serving, sprinkle on reserved chocolate chips and dust with powdered sugar if desired. Serve with desired dippers and enjoy!
