Nachos with cheese and guacamole from the Big Green Egg

Ingredients

• 350 g tortilla chips natural
• 2 sprigs of coriander
• 1 red onion
• 8 sun-dried tomatoes in oil
• 1 avocado
• ½ organic lime
• 2 tbsp extra virgin olive oil
• 1 shallot
• 2 green jalapeño peppers
• 1 tbsp butter
• 1 tbsp flour
• 300 ml milk
• 250 g grated cheddar