Place the blanched almonds, walnuts, and pine nuts in separate small bowls, cover with water, and refrigerate.
Roughly chop the raw, shelled pistachios, then cover and set aside.
In a large pot, combine the rice flour, sugar, caraway powder, and cinnamon powder. Mix well, then pour in the water. Place the pot over medium-high heat, whisking constantly.
Bring to a boil, reduce the heat to low, and simmer uncovered for 15 minutes, allowing the pudding to thicken considerably.
Spoon into individual ramekins, allow to cool to room temperature, cover each ramekin with plastic wrap, and refrigerate overnight.
To serve: Sprinkle some desiccated coconut over each ramekin, generously garnish with the drained nuts and raisins, and enjoy!