Mix together the olive oil, whole grain mustard, garlic powder, salt and pepper in a small bowl.
Cut the salmon into two pieces if purchased whole then spread the mixture over the salmon to cover completely.
Place parchment paper in the basket of the air fryer to prevent sticking then place the salmon pieces on top. Cook 8 minutes at 400 F. Note, you may need to preheat your air fryer first. Mine does not require preheating.
Remove the salmon from the air fryer and serv immediately with dried parsley on top. Store in the refrigerator up to 3 days.
Notes
Pat the salmon dry before placing it in the air fryer. It helps the glaze adhere to the outside of the fish better.
Salmon is typically finished cooking when it flakes apart easily, and the center appears slightly opaque.
Store cooked salmon in an airtight container in the refrigerator for up to 3 days.