Falafel with tahini sauce

Ingredients

• 200 g dried chickpeas
• 1 onion
• 1 clove of garlic
• 5 stalks parsley
• 3 tbs lemon juice
• 1 ts coriander powder
• 2 ts ground cumin
• 4 tbs chickpea flour
• 1 1 / 2 ts salt
• 800 ml oil for deep-frying
• 5 stalks peppermint
• 50 g tahini (sesame paste)
• 150 g greek yogurt
• 1 tbs lime juice
• 50 ml water, lukewarm
• salt, pepper