For the avocado BLT:
Preheat the oven to 350 degrees F. Line a baking tray with aluminum foil and put a cooling rack on top.
Put the bacon on the cooling rack and cook in the oven until crisp, approximately 20 minutes, remove and set aside to cool.
Put the bread slices on a tray, brush with herb oil and put in the oven until lightly toasted.
To assemble: Put the avocado slices on the bread, smash with a fork, season with salt and pepper.
Put 3 slices tomato over the smashed avocado and season with salt and pepper, follow with 4 slices bacon and finish with lettuce. Top with the remaining bread and cut in half.
For the malt vinegar dipping sauce:
Put the shallot, garlic, bay leaves, sugar, pepper, salt, and malt vinegar in a bowl, then stir and set aside.
For the frites: Cut potatoes in equal-size sticks, approximately 1/4-inch wide. Put the potatoes in a large bowl, soak in cold water for a minimum of 30 minutes, maximum 24 hours.
Drain the potatoes and dry thoroughly. Divide the potatoes into batches, fry the potatoes until lightly colored. Remove the potatoes and put on a cooling rack. Repeat with the remaining potatoes.
Raise the heat of the vegetable oil to 375 degrees F and fry the blanched potatoes in batches until golden brown and crisp. Remove the frites from the oil and put in a bowl lined with paper towel, season with salt and continue to fry the remaining potatoes. Serve immediately with the malt vinegar dipping sauce.
For the avocado pudding: Put 1/4 cup milk in a small bowl, sprinkle the gelatin over and stir to dissolve. Add the remaining milk to a small pot and warm over low heat.
Pour a small amount of warmed milk into the bowl with the milk and gelatin, stir to incorporate, then pour the mixture back into the pot with the warmed milk.
Divide the mixture evenly into serving cups, put the plastic wrap directly over the surface of the pudding to prevent a skin from forming, refrigerate for approximately 1 hour to set.