Wash and dry the chicken meat and cut it into chunks. Wash and peel the carrots and cut them into rounds. Peel the spring onions and cut them into wedges. Wash the celery and cut it into cubes. Divide the chicken meat, vegetables and herbs among 4 Bormioli jars, add a few grains of black pepper and cover with oil.
Cook the jars in Fresco® preheated to 75°C with the low-temperature cooking function for 3 hours, then cool them with the rapid cooling function. Store the jars in the refrigerator, covered with the cap, for 2-3 days before serving.
At the time of serving, remove the cap, remove some of the oil and serve them at room temperature with some toast as an accompaniment.