Preheat oven to 400 F. Place the halibut fillets on a lined baking tray and set aside.
Lemon Garlic Butter: In a blender or food processor blend together the garlic, lemon juice, lemon zest, sea salt and pepper until pureed. Add the butter and continue to blend until fully combined.
Using a rubber spatula spread ½ tablespoon of the lemon garlic butter on top of each halibut fillet, covering completely. Sprinkle a pinch of salt and pepper on top.
Dust 1 and ½ tablespoons of the ground almonds on each fillet and spread over the lemon butter to fully cover it.
Bake the halibut for 5 minutes.
While the halibut is still in the oven, change the oven to broil on high. Continue to cook for 5 more minutes.
Remove from oven and put a teaspoon of the remaining lemon garlic butter on top.