1. Preheat the oven to 200 degrees and bring 300 ml of water per person to a boil for the soup.
2. Slice the onion and crush or finely chop the garlic.
Cut the tomato, red pepper, and apricots into pieces.
Clean and chop the tarragon leaves.
3. Heat half of the olive oil in the soup pot and sauté the onion, tomato, pepper, apricots, and half of the garlic for 2 minutes over medium heat.
4. Add 200 ml of boiling water per person, crumble the bouillon cube over the pot, then cook the soup covered for 15 minutes.
5. Meanwhile, pour enough water to cover the pearl couscous into a saucepan, then bring to a boil and cook covered for 12 to 14 minutes.
6. Drain, fluff with a fork, and set aside uncovered.
7. Meanwhile, cut the slices of bread into 6 strips.
Arrange them on a baking sheet lined with parchment paper and brush them with the remaining olive oil and garlic.
Bake for 4 minutes, until crispy.
8. Meanwhile, remove the pot from the heat. Add half of the sour cream and blend everything with a blender (immersion or regular blender).
Season with salt and pepper, then add the remaining boiling water if you want to thin the soup.
Finally, stir in the pearl couscous.
9. Pour the soup into bowls, then garnish with grana padano, the remaining sour cream, and tarragon. Serve with breadsticks.