Carefully rinse 3 kg of cucumbers and cut into slices.
50 g chili peppers, green, fresh, rinse, remove stem and core. Peel 1 kg onions, cut each into rings, layer in jars together with 18 small bay leaves, 6 tbsp mustard seeds, 3 tbsp peppercorns. Bring 3 liters of cucumber infusion with 300 g sugar to a boil and pour hot over the preserves. Close jars tightly, heat to 85 °C and hold heat for 25 min. Thereupon cool down leisurely.