Rinse and scrub the potatoes. If they are rather large, cut into halves.

Dump the potatoes into a pan and cover with water. Add salt. Depending on the amount of water, you’ll need about a tablespoonful or more of salt. You’re not going to get all that salt into your body. Much of it will get thrown out with the water. You want to allow the potatoes to absorb salt from the start to flavor them properly so that you won’t be tempted to keep adding more salt later.

Bring to the boil, cover and simmer just until a knife runs through the thickest part of the potato without resistance. If you salt the water correctly, you will not need to add more salt later.

Drain the potatoes, dump into a mixing bowl and, while still very hot, add the butter and 3 tbsps. of olive oil. Toss well.

Add the grated garlic. Add the zests and herbs as well. Toss to distribute all the ingredients evenly.

Squeeze in the orange and lemon juices. Sprinkle with pepper. Toss again.

Cover the bowl loosely and let the potatoes sit in the dressing for at least 30 minutes to give them time to soak up all the flavors. If, after 30 minutes, the mixture appears dry, pour in more olive oil and toss.

Just before serving, taste a piece of potato and if it is really bland, then you might want to add a little salt. Or, alternatively, add more orange and lemon juice, and pepper.