Preheat oven to 360 degrees F (180 degrees C).
Wash and cut the Jerusalem Artichoke (250 gram) into 1 1/2 to 2-centimeter pieces.
Coat them with Ground Turmeric (1 teaspoon), Ground Ginger (1/2 teaspoon), Extra-Virgin Olive Oil (1 tablespoon), Garlic (2 clove), Fresh Rosemary (to taste), and Salt and Pepper (to taste).
Place them in a baking tray and cook in preheated oven at 360-400 degrees F (180-200 degrees C) until tender, about 25-30 minutes.
Remove from the oven and serve as you like.