Feel free to play it by ear if you make this yourself. Mix some salt and oil (a pinch and 2 tbsp, respectively) with a cup of yogurt and a bit more than a tablespoon (they call for one tablespoon and a teaspoon) of curry powder. Mix to combine, and you have a marinade for your chicken thighs. Then spread out the thighs in a baking sheet and cover them with the spread before putting them in a plastic baggie, but you could probably skip the step (and the dirty dish) and just put the chicken and the spread into the bag, seal it, and toss to coat. Let them marinate for a few hours. Then when you get home from work (or the next day,) bake them at 425 degrees F for about 20 minutes, or until they’re done. That’s all there is to it.
You can even use some of the drippings from the baked thighs to turn leftover yogurt into a flavorful dip you can pair with the meal.