Do I have to drain the ricotta?
I strongly recommend it. Even “thick” ricotta can carry extra liquid, and that liquid will loosen your filling over time. Drain it in a fine mesh strainer or cheesecloth for 30 to 60 minutes in the fridge. If it looks watery, go longer.
Can I use all ricotta and skip mascarpone?
Yes. The filling will be a little tangier and slightly less plush. Use the same amount of ricotta in place of mascarpone. If you want it lighter, fold in 1/2 cup softly whipped cream (whip it separately to soft peaks, then fold). It makes the filling feel extra cannoli-like.
What kind of chocolate chips are best?
Mini chocolate chips are the move. They spread out more evenly and make every bite feel like cannoli filling, not like you hit a chocolate speed bump.
Can I make this as a sheet cake?
Yep. Bake in a 9 x 13-inch pan at the same temperature. Start checking around 28 to 38 minutes, but go by doneness cues: the center should spring back lightly, a toothpick should come out clean (or with a few moist crumbs), and the internal temp should be about 200 to 205°F if you like to be extra sure.
How do I keep the cake from sliding?
Chill the filling briefly (about 10 to 15 minutes) before assembling, and chill the assembled cake for 30 minutes before final frosting. Also, do not overfill the layers. If you want extra insurance, pipe a quick frosting dam around the edge of the first layer, then spread the filling inside it. Your future self slicing neat pieces will thank you.
How long can it sit out?
This cake is dairy-forward. Keep it refrigerated when you are not serving it, and do not leave it out at room temperature for more than 2 hours total.