Steam potatoes (using a steamer insert) over high heat until you can easily break them with a fork, about 20 to 25 minutes. When cool enough to handle (I wear rubber gloves), cut each potato in half.
Whisk lemon juice, garlic, Aleppo pepper and 1 teaspoon Kosher salt together.
Slowly add olive oil while whisking to emulsify.
Add hot potatoes to a bowl and toss with dressing and scallions until well coated.
Cover and let sit at room temperature for a few hours. If you’re making it more than a few hours in advance, refrigerate it and bring it out an hour before serving.
Just before serving add mint and a bit more dressing, if needed. Sprinkle it with flaky sea salt.
Notes
If you're using larger potatoes you'll want to cut them into at least quarters.
Before squeezing a lemon, heat it in a microwave for about 20 to 25 seconds and then rub it back and forth on the counter top. This easy two-step process results in more juice per piece of fruit.
You may have extra dressing – use it as a dressing for a green salad.
Dressing keeps for a few weeks in the refrigerator.