Cannoli cups:
2 cups all-purpose flour, plus more for dusting work surface
2 1/2 Tbsp granulated sugar
1 tsp cocoa powder
1/2 tsp cinnamon
1 pinch nutmeg (optional)
1/2 tsp salt
1/4 cup butter, melted
1 large egg white
6 to 8 Tbsp apple juice or grape juice*
2 Tbsp white wine vinegar (red wine vinegar or plain white vinegar would be fine)
Vegetable oil cooking spray
Cannoli Filling
12 oz whole milk Ricotta cheese, strained
8 oz Mascarpone cheese
1/2 cup powdered sugar**
1/3 cup mini semi-sweet chocolate chips
powdered sugar, for dusting (optional)
Optional toppings:
Melted chocolate, chopped pistachios, sprinkles, toasted sweetened coconut