Prepare Oven: Preheat the oven to 350°F (180°C) and line a 9×5-inch loaf pan with parchment paper, greasing lightly.
Mix Wet Ingredients: In a large bowl, whisk together the eggs, granulated sweetener, melted coconut oil, orange juice, and orange zest until smooth and combined.
Combine Dry Ingredients: In a separate bowl, stir together the almond flour, coconut flour, and baking powder.
Form Batter: Pour the wet mixture into the dry ingredients and mix until you have a uniform batter with no lumps.
Bake: Transfer the batter to the prepared loaf pan and bake for 40–50 minutes, or until a toothpick inserted into the center comes out clean.
Cool: Let the pound cake cool in the pan for about 10 minutes, then lift it out and cool completely on a wire rack.
Make Glaze: In a small bowl, whisk together the powdered sweetener, orange juice, and orange zest until smooth. Adjust consistency with more sweetener or juice as needed.
Glaze Cake: Drizzle the orange glaze over the cooled cake, letting it set before slicing and serving.