Galette with Salami, Mozzarella and Vegetables - step by step recipe with pictures

Ingredients

• 130 g butter
• 300 g flour
• 1 teaspoon salt
• 1 egg
• 80 ml milk
• 1/2 teaspoon vinegar
• 1 tomato
• 1 sweet pepper
• zucchini
• salami
• mozzarella
• 1 tbsp.olive oil
• herbs (such as thyme, basil, spinach)