Air fryer beef flautas - La Tortilleria

Ingredients

• 15 La Tortilleria corn tortillas
• 1.5 kg beef brisket
• ¼ onion
• 4 garlic cloves
• 1½ tbsp rock salt
• 5 peppercorns
• 1 lt sour cream
• 25 ml thickened cream
• 1 pinch salt
• 800 g tin tomatillos
• 3 long green chillies
• ½ bunch of coriander
• 1 garlic clove
• ½ avocado
• ½ lime, juiced
• ½ tbsp rock salt
• ¼ thin sliced lettuce
• ½ red onion, sliced
• 0.1 kg ricotta salata cheese