Sweet and sour zucchini pickle - Gluten Free Kitchen

Ingredients

• 4 zucchini, medium size (1,5 kilo)
• 2 onions
• 6 tbsp salt
• 500 ml natural vinegar
• 450 g sugar
• 3 tsp mustard seeds
• 2 tsp tumeric
• 1 tsp dill seeds
• 2 bay leaves
• 6 juniper berries