Preheat oven to 300F (150°C).
Measure the oats, puffed rice, sunflower seeds, and pumpkin seeds into one bowl and combine well.
Measure and mix the melted coconut oil and pistachio butter in a separate bowl, and drizzle it over your pumpkin seed mixture, stirring until well-combined.
In a separate bowl, add your date sugar, chia seeds, salt, and cardamom (if using), then blend until well-combined.
Sprinkle the sugar mixture over your stick pumpkin seeds-oats and stir until everything is evenly incorporated.
Put down a piece of parchment paper and spread granola evenly on your sheet pan, and then bake for 15 minutes.
Take your granola out of the oven and stir it to ensure even baking, then bake for 7-10 more minutes. Keep an eye on it near the end to ensure it doesn't burn, then cool for 10 minutes and store in an air-tight container.