Prepare crab cakes according to recipe linked in post.
Bring large pot of water to boil with dash of vinegar.
Add each of the 4 eggs to a separate tea cup.
Once boiling, carefully lower teacup into water. Tip and dump egg into water. Repeat with other eggs. Cook 3-4 minutes. You want eggs runny.
While eggs are cooking prepare Hollandaise. Mix together egg yolk, lemon juice, Worcestershire, mustard and spices in a magic bullet, food processor or blender. Warm butter in microwave, add to bullet and mix again until just combined.
Carefully place egg over crab cake then drizzle with Hollandaise. Sprinkle with parsley.
Serve with avocado slices.