Herbed Whitebait Sandwich with Crispy Onions

Method

1. In a bowl, mix flour, salt, paprika, parsley, dill, and pepper.
2. In another bowl, whisk together egg and milk.
3. Dip the whitebait in the egg mixture, then coat with the flour mixture.
4. Place the coated whitebait on a baking sheet.
5. In a skillet, heat olive oil and butter over medium heat.
6. Add the sliced onion and cook until caramelized, about 8-10 minutes.
7. Preheat oven to 400°F (200°C).
8. Bake the whitebait for 15-18 minutes, until golden brown.
9. Toast the baguette halves.
10. In a small bowl, mix Dijon mustard and mayonnaise for the dressing.
11. Assemble the sandwich with lettuce, tomato, whitebait, caramelized onions, and dressing.
12. Serve immediately.