Egg Salad Sandwich

Name: Egg Salad Sandwich
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: American
Ingredients: 6 eggs; 1 tbsp white vinegar (or pickle/lemon juice); 1 tbsp mayonnaise; 1.5 tbsp Greek yoghurt; 1.5 tsp Dijon mustard (or more); 2 green onions; 1/2 tsp paprika; 1/4 tsp dried dill (~or 1 tbsp fresh dill); 1 tsp black pepper; 1/4 tsp salt; 1/4 tsp onion powder; 1/2 tsp Worcestershire sauce (optional); Sriracha; 6 slices bread