Sprinkle the fish on both sides with salt, pepper and 1/2 tsp of the turmeric powder.
In a flat plate or bowl, mix the flour with a bit more salt and pepper, 1 tsp turmeric and paprika powders and thyme leaves.
Dredge the fish filets in the flour, dusting off the excess. Set aside.
In a wide saucepan, heat the oil and better over medium high until the butter melts. Add the remaining 1/2 tsp turmeric and allow the spice to bloom for 10 seconds. Pan fry the fish, about 3 minutes on each side, or until the ends of the filets curl up. Drain on a paper towel and serve with a drizzle of lemon juice and thyme sprigs as garnish along with your favourite sides (we love roast potatoes and asparagus but really, the options are endless).