Completo Italiano with Homemade Mayo

Method

1. In a narrow jar that a stick blender just fits into, add the egg, mustard, part of the lemon juice, part of the salt and the oil, and let it settle for 1 minute so the oil floats on top. Set the blender head flat on the bottom, switch on and, as it turns thick and white, slowly lift it up; in about 1 minute you’ll have thick mayonnaise. Chill it.

   Add in this stepVery fresh egg (ideally pasteurised) 1Dijon mustard ½ tspLemon juice 1.6 tspSalt ⅛ tspSunflower or other mild oil (for the mayo) 150 ml

2. Seed the tomatoes and dice them 5 mm; seed and very finely chop the chilli. Mix with the coriander and part of the salt and leave in a sieve for 10 minutes to drain. It’s a light take on Chilean pebre.

   Add in this stepTomatoes 2Green chilli ½Fresh coriander, chopped 2 tbspSalt ¼ tsp

3. Mash the avocado flesh with the rest of the lemon juice and part of the salt, until smooth but with a little texture. Press cling film onto the surface to stop it browning.

   Add in this stepRipe avocados 2Lemon juice 2.4 tspSalt ¼ tsp

4. Heat water in a 18 cm pot and hold it on medium-low heat (steaming, just trembling at the edges). Warm the frankfurters for 4 min until hot through, then lift out, pat dry and score them shallowly on the diagonal.

   Add in this stepFrankfurters 4

   medium-low heat

5. Melt half the butter in a 24 cm frying pan and fry the frankfurters on medium-high heat for 3 min, rolling them, until the cuts open and they are browned in spots. Lift them out.

   Add in this stepButter 10 g

   medium-high heat

6. Split the buns along the top and spread the insides thinly with the remaining butter. Toast them cut-side down in the same pan on medium heat for 2 min, until golden and crisp, in batches if the pan is small.

   Add in this stepButter 10 gLong soft hot dog buns 4

   medium heat

7. Put a frankfurter in each bun, add the tomato pebre and spread a thick layer of avocado on top. Pipe the homemade mayonnaise over in a zigzag and serve straight away.