- 4 whole fresh, skin-on salmon fillets, cut about 1 1/2 inches thick
- 1/2 cup salted butter, very cold or frozen, plus more for greasing pan
- 1 tablespoon dried thyme
- 1 teaspoon turmeric
- 1/2 teaspoon salt
- 1 whole large ripe yellow lemon, cut into rounds and then halved
- You will also need: Shallow baking pan, grater, foil or parchment