Preheat oven to 375 degrees Fahrenheit (190 degrees Celsius)
Roughly chop the pistachios and set aside.
Preheat a large skillet on medium/high heat.
Dry the salmon fillets with paper towels and season them with salt and pepper to taste.
Add the canola oil to the skillet and immediately add the fish fillets.
Sear the salmon on both sides (approximately 3 minutes per side).
Remove the salmon to a plate and reduce the heat to the skillet to low.
Add the butter to the skillet along with the chopped pistachios, red pepper flakes and lime juice. Stir to combine.
Return the salmon back to the skillet and place the skillet into the preheated oven for approximately 5 minutes.
Remove the skillet from the oven and spoon the butter and pistachio sauce over the fish.
Garnish with basil leaves and serve hot.
Notes
Store any leftovers in an airtight container in the refrigerator for up to 5 days.Leftovers may be frozen. Store in an airtight container or freezer bag and freeze for up to 2 months.