Using a mortar and pestle, grind up the saffron threads into a fine powder.
Rinse the rice under water until the water runs clear.
Add the rice and broth to a rice cooker or stockpot. Mix in the butter, turmeric, saffron, salt, onion powder, and garlic powder, and mix well.
Cook according to rice cooker directions, or cover and simmer for about 15 minutes on the stovetop until all moisture is absorbed.
Fluff with a fork and serve warm. Keep Leftovers in the fridge in a covered container for 3-5 days.