In a medium-sized bowl, use an electric mixer on medium-low to beat ½ cup mascarpone cheese until light and fluffy.
Add 1 cup powdered sugar and continue mixing until well incorporated.
Add 1 cup ricotta cheese and 1 teaspoon vanilla extract and reduce speed to low, mixing just until combined.
Fold in 1 cup mini chocolate chips.
Transfer dip into a serving bowl, sprinkle the remaining ½ cup mini chocolate chips on top, and serve with your favorite dippers.
Notes
Set the ricotta and mascarpone on the counter for about 30 minutes to come to room temperature before you start prepping the dip. This will help them blend together and give you a smoother dip.
For the smoothest possible cannoli dip, you can strain the ricotta before adding it to the mixture. Place the ricotta in a cheesecloth-lined colander set over a bowl, cover, and let it drain in the fridge for a few hours or overnight.
Be careful not to overbeat the cheeses, or you'll end up with a grainy dip.
You will get the creamiest, smoothest dip with whole milk ricotta cheese or part-skim ricotta cheese. We do not recommend using low-fat or fat-free ricotta.
Add more or less powdered sugar if you want a less sweet or sweeter dip.