In a large mixing bowl, beat the mascarpone cheese and sugar together until smooth and creamy. You can use a hand mixer or whisk for this step.
Add the plain yogurt and mix until fully incorporated.
Beat in the eggs, one at a time, ensuring each is well blended before adding the next.
Stir in the lemon juice, vanilla extract, and flour. Mix until the filling is smooth and lump-free.
3. Assemble and Bake:
Pour the filling over the cooled crust in the springform pan. Spread it evenly with a spatula.
Place the pan on a baking sheet to catch any drips.
