If you choose to make a graham cracker crust allow it to cool completely before making the filling
In a stand up mixer with a wire whisk attachment start whipping the mascarpone cheese and powdered sugar until it is creamy
Slowly add the cold whipping cream stopping to scrape down the sides when needed
Keep mixing on high until firm peaks form
Add the lemon juice , lemon zest and yellow food coloring . Mix it for a few minutes until everything is incorporated well and remove the bowl from the mixer
Add a half can of condensed milk and fold in with a rubber spatula , mix until it is incorporated
Poor filling into prepared and cooled graham cracker crust
Cover and chill overnight or at least 8 hours.
Once chilled prepare the whipped cream by beating the whipping cream, powdered sugar and vanilla with a wire whisk attachment until soft peaks form.
Pipe or spread whipped cream around the edges of the pie
Garnish with lemon slices and mint leaves