DO-AHEAD TIP: Toast bread, if using. Poach eggs.
Place one piece of toast on each breakfast plate; top each with a slice of smoked salmon then a poached egg.
In a food processor or blender, process egg yolks then, while yolks are blending, slowly stream the melted ghee (or coconut oil) into the mixture.
Season with the salt and cayenne pepper and continue to blend until mixture becomes thick and silky.
Drizzle this sauce over the poached eggs, sprinkle with chopped dill and serve.