Mix 150 g flour, mineral water, eggs and salt to a pancake batter. Rinse the grapes hot, cut them in half and remove the seeds. Peel shallots and cut into quarters. Clean the mushrooms and halve or quarter them depending on size. Wash chicken fillet, dab dry, cut into cubes and fry in 2 tablespoons of hot oil in portions, season with salt and pepper and remove. Add the remaining oil to the frying fat, fry the mushrooms and take them out. Fry the shallots in the remaining fat and dust with flour.
Add grape juice, stock and cream while stirring and let it boil slightly for about 15 minutes. Meanwhile, make 8 pancakes of approx. 20 cm Ø from the pancake batter in a pan thinly coated with oil. Fold the pancakes into quarters and keep hot. Add grapes, chicken breast and mushrooms to the sauce and heat up briefly. Season to taste with salt and pepper. Put the pancakes on plates, fill with the ragout and garnish with parsley and grapes