Delicate Sicilian almond milk pudding set to a gentle wobble is ethereally smooth. This ancient mediterranean dessert is a family tradition with roots in medieval cooking.
In a medium saucepan off the heat, whisk the cornstarch with the sugar, sea salt, and half of the almond milk until smooth and lump-free.
Slowly pour in the remaining almond milk and whole milk, whisking constantly to fully incorporate, then add the lemon zest.
Place saucepan over medium-low heat; cook, stirring constantly with a silicone spatula, ensuring you scrape the bottom and corners, until mixture thickens and begins to bubble—about 8–12 minutes. Do not let it scorch.
Remove from heat at the first sign of thickened pudding (it should coat the spoon), then quickly stir in the orange blossom water. Continue stirring for another minute off heat.
Pour the pudding into 6 serving glasses or ramekins. Let cool to room temperature, then refrigerate until fully set and slightly wobbly, at least 2 hours. Before serving, top each with chopped pistachios.