Combine all dressing ingredients except for the extra virgin olive oil in a small bowl and whisk together. Once all of the ingredients are combined, continue to whisk as you drizzle in the olive oil. Whisk together until emulsified. Taste and add more of any ingredient as desired.
Salad
Cook the pearl couscous in a saucepan according to package instructions. Once cooked, remove to a bowl to cool down.
Meanwhile, add the shredded kale to a large bowl. Make sure to discard any remaining hard stems before massaging the kale. Add 1 tbsp of extra virgin olive oil and 1/4 tsp of salt. Massage with your hands for about 3 minutes until the kale is tender and soft.
To the same bowl, add the thinly sliced apple, roughly chopped cherries, roughly chopped pistachios, shaved parmesan cheese, cooked pearl couscous, and capers if you are using them. Toss everything together well.
Pour the dressing over the salad and toss again so the entire salad is evenly coated in dressing.
Divide among plates or large bowls to serve. Optionally, top with the protein of your choice as desired.