Prepare your muffin pan by lining a 12-cup tray with paper liners or using a silicone muffin pan for easy removal.
Gently melt the coconut oil and cacao butter together in a small saucepan over low heat until they are completely smooth and combined. Once melted, remove the pan from the heat.
In a food processor, blender, or coffee grinder, pulverize the freeze-dried raspberries into a fine powder.
Add the raspberry powder and powdered erythritol sweetener to the saucepan with the melted oils. Stir well until the sweetener is mostly dissolved, creating a delicious, healthy base.
Carefully divide the mixture among your prepared muffin cups. As you pour, remember to give the mixture a quick stir each time to ensure the raspberry powder is evenly distributed and each fat bomb gets a delightful bottom layer.
Chill the fat bombs in the refrigerator for about an hour, or until they are completely firm.