Step 1

In a small bowl combine the sour cream, mayonnaise, sweet pickle relish, parsley and lemon juice. Set aside.

Step 2

In a medium sized bowl, combine the paprika, garlic powder, onion powder, dried thyme, dried basil, dried oregano, kosher salt, cayenne pepper, and pepper. Add the tuna and toss to thoroughly coat each piece with the spice blend.

Step 3

Melt the butter in a large sauté pan over medium heat. When the butter begins to foam, add the tuna in a single layer. Cook for 30 seconds to 1 minute per side. The lesser cooking time is for tuna that will be slightly rare on the inside and the longer cooking time is for more well done tuna.

Step 4

Remove the tuna from the pan to a platter. Serve with the dipping sauce and lemon wedges.