Step 1Separate the egg yolks from egg whites. Make sure the butter and coconut oil are softened, best at room temperature. This will make it easier for you to bind with the egg yolks.
UPDATE: An easier way that always results in smooth ice-cream is to place all the ingredients in a food processor and pulse until smooth. Then pour in an ice-cream maker and process according to the manufacturer's instructions. When done, blend using an immersion blender (if needed to remove any lumps) and freeze in single serving containers.