Wash the asparagus, peel and cut off the woody ends. Boil 3 litres of salted water. Season with sugar and lemon juice. Let the asparagus peel for about 10 minutes at medium heat. Then pour through a sieve. Collect the stock and put it back into the pot. Bring the asparagus stock to the boil. Cut the asparagus diagonally into pieces of about 3 cm. Cook in the boiling stock for about 5 minutes, then remove and keep warm
Prepare the pasta in boiling asparagus water according to the instructions on the packet. Cut the bacon into cubes. Heat the oil in a pan, drain the bacon in it until crispy. Whisk eggs in a large bowl, season with salt and pepper. Stir in 80 g cheese and bacon
Drain the pasta, let it drain and immediately add it to the egg and cheese mixture with the asparagus. Turn the penne in it until everything is covered by a yellow cream. Spread immediately on plates and sprinkle with the rest of the Parmesan cheese