Melt the butter in a medium-sized skillet. Add in shallot and sauté for 2 to 3 minutes.
Season the salmon with salt and pepper for flavor. Then sauté the salmon for 3 to 4 minutes per side.
Remove the salmon and plate (the salmon won't be completely cooked yet at this point). Add the whiskey, vinegar, and tarragon to the skillet and simmer for 1 minute.
Add in the whipping cream and season the salmon with salt and pepper. Return the salmon to the skillet and cover and cook for 1 to 2 minutes per side. Then divide the salmon in half.
After dividing the salmon, arrange each half on 2 plates. Afterward, top them with sauce and serve them with lime wedges on the side. Enjoy!