Boil Eggs: Place eggs in boiling water for 6 minutes and 30 seconds.
Cook Bacon: Fry bacon in a preheated oven at 180°C (356°F) for 14-18 minutes, turning halfway.
Prepare Curry Mayo: Mix mayonnaise, curry powder, turmeric, black pepper, and diced cucumber. Let sit for 15 minutes.
Peel Eggs: Cool boiled eggs in cold water and peel carefully.
Assemble Sandwich: Spread butter on rye bread, layer with salad, add curry mayo, bacon, halved eggs, and garnish with star tomatoes, onion rings, and chives.
Finish with Bacon Rings: Top with crispy bacon rings and additional curry mayo.