Preheat the oven to 375 degrees F. Line a baking sheet with parchment paper. Arrange the salmon in a single layer on the baking sheet, placing it skin side down. Brush the fish with the melted butter; season with salt and pepper. Bake the salmon 15 minutes, or until cooked through.
While the fish bakes, place the remaining ingredients, except mint or cilantro and almonds, in a small to medium pot and whisk to combine. Set over medium, medium-high heat and bring to a simmer. Simmer a few minutes, or until a lightly thickened sauce forms. Stir in the mint or cilantro, cover and reserve sauce on low heat.
When cooked, plate the salmon, top with sauce, sprinkle with almonds and serve.
Note: To toast the almonds, place them in a single layer in a small baking pan. Bake the almonds in a 375 degrees F oven 6 to 7 minutes, or until lightly toasted.