In the bowl of a food processor, add the flour, sugar, salt, and butter. Pulse several times until the mixture resembles coarse meal.
Pour in half of the milk, pulsing until the dough comes together in a ball. If needed, add additional milk a splash at a time until the dough comes together – it should hold together and be pliable but not wet. You may not use all of the milk.
Use a small cookie scoop to scoop 1-tablespoon portions of the dough into each well of (1) 24-well mini muffin tin. Press the dough evenly across the bottoms and up the edges of the wells. Place the pan in the refrigerator and chill for at least 30 minutes.
While the tart shells chill, preheat the oven to 350°F.
Once the tart shells have chilled, prick the bottoms of each shell a few times with a fork. Bake for 13-16 minutes, or until the edges are golden. Set the pan on a cooling rack to allow the shells to cool completely.
Once cooled, use a small offset spatula to gently lift the tart shells out of the pan and onto a platter or wire rack. Fill each shell with a generous teaspoon of the vanilla pudding and top with the assorted fresh fruit.
If desired, glaze the tops of the tarts by mixing the apricot preserves with 1 teaspoon of water in a small microwave-safe bowl. Microwave for 15-30 seconds, until the preserves are melted. Gently brush over the fruit on the tarts.
Serve immediately or store in the refrigerator until ready to serve.
Notes
Small berries, such as blueberries, can be left whole. Halve or quarter fruits such as raspberries, blackberries, grapes, and cherries, depending on size. Cut larger fruits, such as strawberries, kiwi, and peaches into a ¼-inch dice.Tarts are best served the same day they are assembled. If you would like to make the components ahead of time:
Store baked and cooled tart shells in an airtight container at room temperature for up to 2 days.
Store vanilla pudding in an airtight container in the refrigerator for up to 3 days.
Store diced fruit in an airtight container in the refrigerator for up to a day. Keep in mind that cut fruits may release some of their juices during this time.