Preheat oven (electric cooker: 220 °C/circulating air: 200 °C/gas: see manufacturer). Line a baking tray with baking paper and boil 3-4 l salt water (1 teaspoon salt per litre).
Peel the garlic and cut into thin slices. Drain the artichokes and cut in half. Spread on the baking tray. Add oil and garlic. Roast in a hot oven for about 10 minutes.
Cook the pasta in boiling salted water according to the instructions on the packet. Wash the sage, shake dry and pluck the leaves. Heat butter in a pan. Fry the sage briefly in it and take it out.
Drain the pasta, put it back into the pot with the artichokes and mix well. Season with salt and pepper. Sprinkle with sage.