Preheat the oven to 350°F (175°C).In a mixing bowl, combine the almond flour, melted coconut oil (or dairy-free butter), maple syrup (or agave syrup), and a pinch of salt to make the tart crust. Mix until the ingredients are well combined and form a crumbly texture. Press the tart crust mixture into a 9-inch tart pan, ensuring an even layer on the bottom and up the sides. Use a fork to prick the bottom of the crust to prevent it from puffing up during baking.
Bake the tart crust in the preheated oven for 12-15 minutes, or until it turns golden brown. Remove from the oven and let it cool completely.
While the tart crust is cooling, prepare the dairy-free creme patisserie. In a saucepan, combine the dairy-free milk, granulated sugar, and cornstarch. Heat the mixture over medium heat, stirring continuously until it thickens to a custard-like consistency.
In a separate bowl, prepare the plant-based egg substitute by mixing ground flaxseeds or chia seeds with water. Let it sit for about 5 minutes until it forms a gel-like consistency.
Remove the creme patisserie from the heat and stir in the vanilla extract and the prepared plant-based egg substitute. Mix until the custard is smooth and well combined.
Pour the dairy-free creme patisserie into the cooled tart crust, spreading it out evenly.
Arrange the fresh raspberries on top of the creme patisserie in a decorative pattern.
If desired, garnish the tart with fresh mint leaves and a dusting of powdered sugar for an elegant presentation.
Refrigerate the Raspberry Tart with Dairy-Free Creme Patisserie for at least 1-2 hours before serving to allow the flavors to meld together and the creme patisserie to set.
Slice and serve this delightful Raspberry Tart with Dairy-Free Creme Patisserie, and savor the luscious combination of creamy custard and vibrant raspberries in every blissful bite!