Dilly Salmon & Mustardy Potatoes with Pickle Tartar Sauce

Ingredients

• Four 6-ounce salmon filets
• 1 tbsp plus 1 tsp Dilly-Licious Salt-Free seasoning
• 1 ½ tbsp extra-virgin olive oil
• 1 ½ lbs new potatoes
• Kosher salt
• 2 tbsp unsalted butter
• Splash white wine vinegar
• 1 heaping tbsp Creole mustard
• ½ cup plus 2 tbsp mayonnaise (preferably Duke’s)
• 2 tbsp finely chopped scallions (white and light green parts)
• 1 tbsp drained capers, chopped
• 2 tbsp dill relish or finely chopped pickles (such as cornichons or half sour)
• 1 tbsp plus 1 tsp Dilly-Licious seasoning
• 1 tsp Dijon mustard
• 1 tsp finely grated lemon zest
• 1 tsp lemon juice, plus more as desired
• Black pepper, as desired