Mix the coriander, black pepper, paprika, and salt in a bowl. Add the olive oil and stir well.
Add the sour cream and tomato paste to the spice mixture and stir thoroughly until well combined.
Cut the chicken breasts into roughly 2-3 cm cubes.
Add the chicken to the marinade, stir to coat well, cover, and refrigerate for 2-3 hours.
While the chicken marinates, soak wooden skewers in water for at least 30 minutes.
Thread the chicken pieces onto the soaked skewers and arrange them on a baking sheet lined with parchment paper.
Preheat the oven to 180°C (350°F).
Place the baking sheet in the oven and bake for 25-30 minutes, turning the skewers 3-4 times, until golden brown and the chicken reaches an internal temperature of 74°C (165°F). In the final 2-3 minutes, move the baking sheet to the top rack to crisp the exterior.