To make the dressing, place mayonnaise, sour cream, capers, gherkins, garlic, herbs and juice into a bowl and mix, season with salt and pepper. Set aside.
2
Slice each bun in half, using a hot griddle, toast the inside of each bun, set aside.
3
Place flour, salt and pepper into a bowl, mix. Cut each salmon fillet into 4. Add the salmon pieces and coat well.
4
Add oil to a non-stick pan, heat to medium. Add salmon and cook for 2 minutes on each side, allowing the salmon to become crispy and golden all over. Remove and keep warm.
5
Layer the bottom of the buns with micro herbs, radish and carrot. Top with salmon, dollop with herb sauce and top with remaining bun.