1Trim off the tough outer leaves of each artichoke.
2Cut off the top 1/3 of the artichoke.
3Scoop out the hairy choke with a spoon, leaving the heart intact.
4Rub the cut surfaces with half a lemon to prevent browning.
5Fill a bowl with ice-cold water and squeeze the juice of 1 lemon into it. Place the prepared artichokes in the lemon water to keep them fresh while you work.
6Bring a large pot of water to a boil. Add a pinch of salt and the juice of the remaining lemon half.
7Add the artichokes and boil for 45 minutes, or until the hearts are tender when pierced with a fork. Drain and pat dry with a clean towel.
8Heat 4 teaspoons (20 ml) of olive oil in a large skillet over medium heat.
9Add the unpeeled garlic cloves and a few sprigs of thyme to infuse the oil with flavor.
10Place the artichokes cut-side down in the skillet. Cook on low heat for 15 minutes to develop a gentle, aromatic flavor.
11Increase the heat to high and cook for an additional 3 minutes to crisp the edges, until golden and slightly caramelized.
12Season with a pinch of salt to taste. Serve warm, garnished with extra thyme if desired.