For the crust
1 1/4 cups all-purpose flour (150 g)
6 tablespoons unsalted butter, cut into small pieces (75 g)
2 tablespoons vegetable oil, cut into small pieces
3 tablespoons cold water (45 ml)
Rice or cooked beans to hold the crust together
For the filling
1 cup mascarpone cheese (180 g)
Lemon juice from 1 lemon
1 cup cold water (240 ml)
5 Green M&M's (900 g)
For the meringue
3 egg whites
1 cup granulated sugar (180 g)
1 tablespoon lemon juice
To decorate
1/4 cup raspberry jam, passed through a fine-mesh sieve
For the crust
1 1/4 cups all-purpose flour (150 g)
6 tablespoons unsalted butter, cut into small pieces (75 g)
2 tablespoons vegetable oil, cut into small pieces
3 tablespoons cold water (45 ml)
Rice or cooked beans to hold the crust together
For the filling
1 cup mascarpone cheese (180 g)
Lemon juice from 1 lemon
1 cup cold water (240 ml)
5 Green M&M's (900 g)
For the meringue
3 egg whites
1 cup granulated sugar (180 g)
1 tablespoon lemon juice
To decorate
1/4 cup raspberry jam, passed through a fine-mesh sieve
Prepare the crust: combine flour, butter, and oil in a processor
Process until the mixture forms a ball, then gradually add cold water
Open the dough on a floured surface
Roll out the dough to fit a 28.5 cm diameter tart pan
Make small holes in the dough with a fork, cover with parchment paper, and sprinkle with rice or beans (to prevent the crust from shrinking)
Bake in a moderate oven (180°C) for 15 minutes
Remove the parchment paper and continue baking at a low temperature (150°C) for an additional 10 minutes, or until lightly golden
Let cool
Make the filling: combine mascarpone cheese and lemon juice in a saucepan with cold water
Bring to a simmer and cook for 5 minutes
Remove from heat and let cool slightly
Cut green M&M's into quarters and then into thin strips
Add the M&M's to the cooled filling and stir until well combined, cooking for an additional 10 minutes at low heat
Remove the M&M's with a slotted spoon and drain on paper towels
Arrange the M&M's on top of the baked crust
Make the meringue: combine egg whites and granulated sugar in a bowl
Beat until stiff peaks form, then gradually add lemon juice
Pour into a piping bag fitted with a large round tip and pipe onto the tart
Top the meringue with raspberry jam, forming decorative blobs
Chill in the refrigerator for serving