Step 1: Prepare the Lemon Filling
In a mixing bowl, beat the mascarpone cheese until smooth.
Add the lemon curd and mix until fully combined.
In a separate bowl, whip the heavy cream and powdered sugar until stiff peaks form.
Gently fold the whipped cream into the lemon mixture. Transfer the filling to a piping bag and refrigerate until ready to use.
Step 2: Make the Meringue
In a clean bowl, whip the egg whites and cream of tartar on medium speed until soft peaks form.
Gradually add the granulated sugar, 1 tablespoon at a time, while continuing to beat on high speed until stiff, glossy peaks form.
Mix in the vanilla extract.
Step 3: Assemble the Cannolis
Pipe the lemon filling into both ends of each cannoli shell, ensuring the shell is evenly filled.
Using another piping bag (or a spoon), pipe or spread the meringue onto the top of each cannoli.
Step 4: Torch the Meringue
Lightly torch the meringue until golden brown using a kitchen torch. Be careful not to overdo it!
Step 5: Serve and Enjoy
Serve the Lemon Meringue Pie Cannolis immediately or store them in the refrigerator for up to 24 hours.