In a medium-sized saucepan, combine the plant milk, lemon juice, lemon zest, lemon extract, and turmeric on medium-high heat.
Whisk the ingredients.
Bring the liquid mixture to a boil.
Once boiling, carefully remove ¼ cup of the hot liquid and hour it into a bowl or measuring cup.
Add the cornstarch to the ¼ cup of hot liquid.
Whisk the cornstarch into the hot liquid and whisk until a smooth slurry is formed.
Pour the slurry into the large pan and whisk into the saucepan.
Continue whisking; do not step away.
As the mixture heats, it will thicken.
Pour the contents of the pan into a large measuring cup to pour the lemon pudding into dessert dishes.
Cover the pudding with circles of parchment paper or saran wrap almost touching the pudding.
Place in the refrigerator for at last 2 hours until chilled through.
Add a handful of blueberries, a mint leaf, and a slice of lemon.
Refrigerate covered until ready to serve.