Preheat oven at 350 degrees
In a large metal bowl, add the flour, sugar, and salt and mix
Add the butter and the egg yolks and stir them in with a fork
Stir in the alcohol mixture slowly one tablespoon at a time, with a fork until the dough starts clinging together. Form a ball with the dough and let it stand for 30 minutes covered by saran wrap
Cover a flat surface with flour and roll the dough paper thin
Using a biscuit cutter, cut the shells out of the dough. Discard any leftover dough
Coat a muffin tray with the cooking spray. Add the cannoli shell dough
Bake until golden
While shells are baking, prepare the filling. Combine the ricotta and mascarpone cheeses, powdered sugar, and vanilla extract until well mixed. Stir in the chocolate chips. Refrigerate.
Fill a small pot halfway through with water. Place a metal bowl over the pot setting up a bain-marie. Add the regular sized chocolate chips and melt. Once melted add the vanilla and stir
After the cannoli cups have cooled down, slowly and carefully dip them in the chocolate. Let them cool until the chocolate hardens
Transfer the filing into a piping bag and swirl it in the cups
Top with sprinkles, powdered sugar, or more mini chocolate chips and enjoy!