01 - Preheat your oven to 350°F. Lightly grease 8 mini tart pans or a muffin tin with cooking spray or a small amount of oil.
02 - In a medium bowl, combine almond flour, melted coconut oil, maple syrup, and salt. Mix thoroughly until well combined and a crumbly dough forms that holds together when pressed.
03 - Press the dough evenly into the bottoms and up the sides of the prepared tart pans, creating a thin, even layer. Use the back of a spoon or your fingers to smooth the surface. Prick the bases several times with a fork to prevent bubbling.
04 - Bake for 10 to 12 minutes, until lightly golden around the edges. Remove from oven and let cool completely in the pans before filling.
05 - While crusts cool, whisk together coconut milk, lemon juice, lemon zest, maple syrup, cornstarch, turmeric, and salt in a medium saucepan. Whisk vigorously until cornstarch is completely dissolved and mixture is smooth.
06 - Place the saucepan over medium heat, whisking constantly to prevent scorching. Continue cooking until the mixture thickens noticeably and begins to bubble, about 6 to 8 minutes. The custard should coat the back of a spoon.
07 - Remove from heat and let the filling cool for 5 to 10 minutes, until slightly thickened but still pourable. Pour the lemon filling into the cooled tart shells, dividing evenly among all 8 pans.
08 - Refrigerate the tarts for at least 1 hour, or until the filling is completely set and firm to the touch. For best results, chill 2 to 4 hours before serving.
09 - Just before serving, top each tart with fresh berries, thin strips of lemon zest, or edible flowers if desired. Serve chilled.