Bring a pot of water to a simmer. Create a vortex with a spoon and crack and poach the eggs for 3-4 minutes. Remove the eggs from the pot and place in a bowl.
Add the egg yolks, lemon juice, dijon, salt and cayenne pepper to a high powered blender and blend for about 5 seconds. Then slowly pour in the hot butter with the blender on medium high, until you've fully emulsified the sauce. Pour into a small bowl.
use a grilled toast, add to a plate and top with smoked salmon, a 2 poached or boiled egg, and a drizzle of hollandaise sauce. Garnish with chopped parsley and serve immediately!