Make the crab cakes: Whisk together 1 egg, 2 Tbsp mayo, 2 tsp Old Bay, 2 tsp Dijon, 1 tsp Worcestershire, 2 Tbsp parsley, 2 Tbsp dill, 1 tsp salt, and ¼ tsp pepper. Gently fold in 1 lb crab meat and ⅔ cup crushed Ritz until just combined.
Chill: Divide into 8 cakes, place on a parchment-lined sheet, and refrigerate 30 minutes (or up to 1 day).
Cook: Shape into even rounds. Heat 2 Tbsp butter over medium and cook 2–3 minutes per side, until golden and crisp. Enjoy hot or room temp on toasted English muffins with a poached egg and blender hollandaise.
Poach the eggs: Bring a few inches of water and 2 tsp white vinegar to a gentle simmer (not a boil). The vinegar helps the whites stay tight.
Prep: Crack each egg into a fine mesh strainer to remove excess white, then transfer to a ramekin.
Vortex: Stir the simmering water to create a gentle whirlpool.
Cook: Slide eggs into the center (up to 4 at a time). Cook 3 minutes, until whites are set.
Finish: Remove with a slotted spoon and drain on paper towels. If making ahead, transfer to an ice bath and refrigerate (in cold water) up to 5 days.
Blender hollandaise: Melt 8 Tbsp unsalted butter (use 10 Tbsp for a thinner sauce). In a blender, combine 3 egg yolks, ¼ tsp Dijon (optional), 1 Tbsp lemon juice, ½ tsp Kosher salt, and a pinch of cayenne. Blend, then slowly stream in the hot butter until smooth, creamy, and emulsified.
Assemble & serve: Toast and halve the English muffins (fork-split if you prefer). Butter if desired. Top each with a warm crab cake, a poached egg, and a generous spoonful of hollandaise. Finish with paprika, freshly cracked black pepper, flaky salt, and chopped herbs. Serve immediately!