In a medium saucepan, combine the plant-based milk, plant-based heavy cream, maple syrup, vanilla extract, cinnamon, and salt. Place the saucepan over medium heat and whisk everything together.
Stir occasionally to prevent the mixture from sticking to the bottom of the pan.
Once the liquid mixture is warm, stir in the cooked rice. Reduce the heat to low and stir frequently.
Continue cooking the rice pudding for 10–12 minutes, stirring often to ensure the rice doesn’t stick to the bottom.
Once the pudding reaches your desired thickness, stir in the lemon zest and raisins if using
Remove the saucepan from heat and let the rice pudding cool slightly. Serve warm for a cozy treat or refrigerate for a chilled, refreshing dessert.