Warm a large skillet over medium heat and add 1 tsp cooking oil. Once hot, add 200 g ground pork and press it flat into a single layer. Fry for 3-4 minutes, until the underneath develops a brown crust, then flip and repeat on the other side for 2-3 minutes.
Add 100 g onion, 30 g carrot, 25 g celery, and 1 garlic clove. Break up the meat as you stir, until all the ingredients are evenly distributed. Cook until the onions are translucent.
Push the ingredients to the side to make some space in the pan, then pour in 2 tbsp red wine and scrape the fond using a wooden spatula. Let the wine bubble for about 30 seconds before mixing it into the meat and vegetable mixture.
Add 2 tbsp tomato ketchup and 1 tbsp Worcestershire sauce, and mix until everything is evenly coated. Continue to stir over the heat for 1-2 minutes to caramelize the sugars in the ketchup.
Pour in 400 g canned tomato and use a spatula to break and crush it down. Add 1 bay leaf and 1 pinch nutmeg powder, then stir everything together.
Reduce the heat to low and simmer uncovered until the sauce has reduced by half. Stir occasionally to prevent burning.
While you wait, pour 2500 ml water into a large pot and bring it to a rolling boil. Add 2½ tsp salt and mix, then add 240 g dry spaghetti and boil according to the packet instructions.
Once the meat sauce has reduced, turn off the heat and remove the bayleaf. Add ½ tsp Japanese soy sauce (koikuchi shoyu) and 1 tbsp unsalted butter, and mix them in.
Drain the pasta and divide it between serving plates. Top with a generous helping of meat sauce, then finish with 1 tsp grated parmesan cheese, 1 pinch black pepper and 1 tsp fresh parsley. Add a few drops of Tabasco sauce for a spicy kick. Enjoy!
Notes
Sear the meat as 1 slab, not crumbled: Press the ground meat flat against a hot pan for 3 to 4 minutes a side before you break it up.Cook the ketchup 1 full minute against the pan: Add the ketchup before the canned tomato and let it sizzle against hot metal for at least 60 seconds. Raw ketchup stirred straight into liquid stays sharp and reads candy-bright through the finished plate.Add soy sauce and butter only after killing the heat: Soy sauce aromatic compounds burn off on a live flame and butter splits into oil and milk solids instead of emulsifying. Off the heat, both fold into a glossy finish in 10 seconds.Use pasta water, not tap water, to loosen an over-reduced sauce: A few tablespoons of starchy water from the spaghetti pot stirred in off the heat brings the sauce back to a glossy pour without thinning the seasoning. Tap water rescues the texture but dilutes the flavor.