Add cumin seeds, yellow mustard seeds, dill seed, coriander seeds, and fennel seeds to a small skillet over medium heat. Toast for 2-3 minutes while shaking the pan.
Grind the seeds in a coffee grinder, spice grinder, or mortar and pestle until fine. Add the salt, sugar and blackpepper to the spice mixture and mix to combine.
Rinse the salmon under cold water and pat dry with paper towel. Place on a parchment lined baking sheet and spread the spice mixture over the flesh side only. Allow the fish to rest for 30 minutes at room temperature for faster grilling.
Prepare the grill to medium-high and coat the grates with cooking spray or brush with olive oil. Place the salmon skin-side down and grill for 5-6 minutes. Flip over and grill for another 5-8 minutes. Remove to a cutting board and serve immediately.
Notes
This seafood spice blend works great with any type of fish or seafood and is delicious on halibut or other white fish.