Preheat the oven to 400°F. Line a large rimmed baking sheet with parchment paper and set the halibut fillets on top.
Place the Butter with Olive Oil & Sea Salt in a small food processor and add the fresh basil and garlic. Puree until smooth. (Or place the ingredients in a bowl and puree with an immersion blender.)
Dollop 1 teaspoon of basil butter on each halibut fillet, then spread the butter over the surface with a spatula. Refrigerate the rest of the basil butter until ready to serve. Salt and pepper the fillets. Sprinkle approximately 2 teaspoons of ground almond meal over the top of each piece.
Place the baking sheet in the oven on the middle rack. Bake for 5 minutes. Then set the oven temperature on high broil. Broil the fillets for another 4-5 minutes, until the tops are slightly golden. Do not overcook! The tops should be a little crispy, but the inside of each halibut fillet should be moist and flaky. Serve the baked halibut warm with a dollop of basil butter on top.