Stir together the ingredients for the citrus butter sauce in a small bowl or jar.
Heat the oil in a cast iron skillet over medium heat. While oil is heating, sprinkle the salmon with paprika, ground ginger, and sea salt (or choice of spices/herbs).
Carefully place the salmon on the skillet skin-side down. Cook until bottom turns golden brown and crispy, about 4 minutes.
Reduce the heat to medium-low and carefully flip the salmon to the flesh side. Cook an additional 3 to 4 minutes, until salmon is cooked-through.
Remove salmon from heat and pour the sauce over the salmon - this will generate some steam, so do this step carefully. Allow salmon to sit until much of the sauce has evaporated.
Serve salmon with choice of side dishes.
Notes
*You can replace the paprika and ground ginger with any of your favorite spices, such as garlic powder, onion powder, lemon pepper, or cumin.