Preheat the oven - Preheat the oven to 400°F (200°C). Line a baking sheet with aluminum foil.
Prepare the glaze - In a small saucepan, mix together the tamarind paste, honey, red pepper flakes, soy sauce, sesame oil, minced garlic, salt, and black pepper over low heat until it forms a smooth sauce. Remove from heat. - Make sure to stir the glaze constantly to prevent it from burning. You can adjust the sweetness or sourness of the glaze to your taste by adding more honey or tamarind paste, respectively.
Brush the salmon fillets with the glaze - Place the salmon fillets on the prepared baking sheet. Brush the glaze generously over the top of each fillet. - Make sure to use a well-greased cooking brush or a spoon to avoid the sauce sticking to the brush. Use all of the glaze for the recipe.
Bake the salmon - Bake the salmon fillets in the preheated oven for 12 to 15 minutes, or until the salmon is cooked through and flakes easily with a fork. - If you like your salmon well-done, leave it in the oven for a few extra minutes. If you prefer your salmon medium-rare, cook it for less time. Adjust the cooking time according to the thickness of your fillets.
Garnish and serve - Garnish the salmon fillets with chopped green onions and serve with your favorite side dishes.