Place the 1½ lbs baby red bliss potatoes in a large pot and cover with cold, generously salted water. Bring to a boil and cook for about 8–10 minutes, just until the potatoes are beginning to become tender but are still firm in the center. Drain thoroughly and allow them to steam-dry for a few minutes.
1½ lbs baby red bliss potatoes
Preheat the oven to 450°F. Toss the warm potatoes with 2 tbsp olive oil, 1 tsp smoked paprika, salt, and ½ tsp black pepper. Spread them in a single layer on a large baking sheet, giving them plenty of room. Roast for 25–30 minutes, turning once halfway through, until deeply golden and crisp on the outside.
2 tbsp olive oil, 1 tsp smoked paprika, ½ tsp black pepper
While the potatoes roast, whisk together the 2 tbsp apple cider vinegar, 1 tbsp Dijon mustard, 1 tbsp whole-grain mustard, 1 tbsp mayonnaise, 1 small garlic clove, and ½ tsp smoked paprika. Slowly whisk in the 2 tbsp olive oil until the dressing is smooth and emulsified. Stir in the 2 tbsp fresh dill, 3 scallions, and 2 tbsp fresh parsley. Season with salt and plenty of freshly ground black pepper.
2 tbsp apple cider vinegar, 1 tbsp Dijon mustard, 1 tbsp whole-grain mustard, 1 tbsp mayonnaise, 1 small garlic clove, ½ tsp smoked paprika, 2 tbsp olive oil, 2 tbsp fresh dill, 3 scallions, 2 tbsp fresh parsley
Pat the 1½ lbs flank steak completely dry. Rub it with 1 tbsp olive oil, 2 garlic cloves, 1 tsp smoked paprika, 1 tsp kosher salt, and ½ tsp black pepper. Let it sit at room temperature for about 15–20 minutes.
1½ lbs flank steak, 1 tbsp olive oil, 2 garlic cloves, 1 tsp smoked paprika, 1 tsp kosher salt, ½ tsp black pepper
Heat a cast-iron skillet or grill pan over high heat. Cook the steak for approximately 4–5 minutes per side for medium-rare, depending on thickness. Transfer to a cutting board and let rest for 8–10 minutes before slicing thinly against the grain.
As soon as the potatoes come out of the oven, transfer them to a large bowl while they're still hot. Pour over the dressing and gently toss until every potato is coated. Fold in a little extra dill and scallion just before serving.
Pile the warm dressed potatoes onto a large platter and arrange the sliced flank steak alongside or over the top.