• Before starting, preheat the broiler to high. 
• Wash and dry all produce.
• Remove any brown spots from potatoes and cut into 1/2-inch pieces.
• To a large pot, add potatoes, 2 tsp salt and enough water to cover by approx. 1 inch (use same for 4 servings). Cover and bring to a boil over high.
• Once boiling, reduce heat to medium. Simmer uncovered for 10-12 min, until fork-tender.

• Meanwhile, peel, then cut onion into 1/4-inch slices.
• Heat a large non-stick pan over medium.
• When hot, add 1/2 tbsp (1 tbsp) oil, then onions. Cook for 3-4 min, stirring often, until softened slightly.
• Add 1 tsp (2 tsp) sugar and season with salt. Cook for 3-4 min, stirring occasionally, until onions are dark golden.
• Remove the pan from heat.
• Transfer onions to a small bowl, then set aside. Carefully wipe the pan clean.

• Meanwhile, in a medium bowl, combine turkey, half the panko (use all for 4 servings), half the Dijon, 1/4 tsp (1/2 tsp) salt and 1/4 tsp (1/2 tsp) pepper. (TIP: If you prefer more tender patties, add an egg to mixture!) 
• Form mixture into 2 (4) 5-inch-wide patties.

• Reheat the same pan (from step 2) over medium-high.
• When hot, add patties to the dry pan. Pan-fry for 4-5 min per side, until cooked through.** (NOTE: Don't overcrowd the pan; cook patties in 2 batches if needed.)

• Meanwhile, finely chop pickles, reserving pickle juice.
• Roughly chop parsley.
• In another small bowl, stir together ketchup, half the pickles and 1 tbsp (2 tbsp) mayo. (NOTE: This is your tangy sauce.) 
• When potatoes are fork-tender, drain and return them to the pot, off heat.
• To the pot with potatoes, add parsley, reserved pickle juice, remaining pickles, remaining mayo and remaining Dijon. Season with pepper, then gently stir to coat.

• Halve buns. On an unlined baking sheet, arrange buns, cut-side up. Sprinkle cheese over bottom buns.
• Toast buns in the middle of the oven for 2-3 min, until cheese melts. (TIP: Keep an eye on them so they don't burn!)
• Spread tangy sauce on top buns.
• Stack patties and caramelized onions on cheesy bottom buns. Close with top buns.
• Divide burgers and potato salad between plates.

If you've opted to get turkey, prep and cook in the same way the recipe instructs you to prep and cook beef.**