Pat dry and season your salmon.
In a Cast Iron Skillet, or large skillet, heat olive oil on med-high heat.
Add salmon, if there is skin, skin side down first. Cook 6-7 minutes. Flip over and cook another 5-6 minutes. Take off skillet and put on plate, set aside.
Melt butter on med-high heat, add garlic and cook until fragarant, about 30 seconds.
Add in your sake and whisk fast, scraping any brown bits off bottom. Add in chicken broth and stir. Bring to boil for about a minute. Add your heavy cream and bring to another boil about 30-1 minute until starts to thicken. If it isn't thickening to your liking, be sure to use a cornstarch slurry (cornstarch and cold water mix) and pour into your cream. It should thicken very quickly.
Add your chinese five spice.
Salt and pepper to taste, taste as you go, always.
Add salmon back to sauce and coat. Let salmon warm back up a little with the sauce. Serve over rice or veggies.
Enjoy!