1. Preheat the oven to 350°F (175°C) and bake tart shells according to the package or your recipe.
2. In a microwave-safe bowl, heat the milk and cream for about 3 minutes, until very hot but not boiling.
3. In a large bowl, whisk together egg yolks, sugar, cornstarch, and vanilla until smooth.
4. Keep the egg whites and make this delicious Berry-Loaded Pavlova with Marshmallow Frosting
5. Slowly pour the hot milk mixture into the egg mixture while whisking constantly.
6. Return the mixture to the microwave and heat in 1-minute bursts, stirring each time, until thick (about 5–7 minutes), depending on the wattage of your microwave.
7. If using, add the food coloring and mix through.
8. Let the custard cool; it will get thicker as it cools.
9. Spoon or pipe it into the baked tart shells.
10. Refrigerate for approximately 2 hours until set.
11. Top with blueberries, raspberries, mint leaves, and a light dusting of powdered sugar or any fruit you like.

Note:

The tart shells are not included in the nutritional value