Add all the spices into a small pan. Roast over medium heat until fragrance is released. You should hear faint sizzling noises if you hold the pan close to your ear.
Transfer the spices into a small bowl to cool.
Once cooled down completely, transfer to a coffee grinder or use a mortar and pestle. Ground until it turns to fine powder. Transfer to an airtight jar and store in cool, dark place out of direct sunlight.