Using a sharp knife, slice the potatoes 3/4 of the way through, all the way along. Pop onto a baking sheet, drizzle with plenty of olive oil, and sprinkle with sea salt. Roast until golden and crispy: this should take 30-40 minutes.
For the labneh, line a sieve with a clean muslin cloth and place a bowl underneath. Tip the yogurt onto the cloth and allow it to sit for 10 minutes. After 10 minutes, give it a little squeeze, and you should have a lovely thick mixture.
For the salsa verde, finely chop the parsley and place it in a bowl with the capers, minced garlic cloves, lemon juice, olive oil, and a pinch of salt. Stir well.
Spread the labneh on a plate, top with the potatoes, and drizzle over plenty of Salsa Verde along with a sprinkle of microgreens.
Notes
Nonpareille capers, another type of tiny caper will also work well here, and you can also use chopped regular capers.