Add the minced beef and a large pinch of salt & stir until all of the meat has browned.
Add the wine & stir occasionally, until it has completely evaporated.
Once the wine has evaporated, add the milk and nutmeg & stir occasionally, until it also has completely evaporated.
Once the milk has evaporated, add the chopped tomatoes & stir.
Once the tomatoes begin to bubble, turn down the heat to very low and allow to simmer uncovered for at least 3 hours, stirring occasionally.
(Add water if/when the ragu absorbs all of the liquid to prevent it from burning. You can repeat this many times; it is better to add little and often than add a lot at once).
Once the ragu has been cooking for several hours and has reached its desired rich, creamy, silky smooth consistency, turn off the heat.
Either serve hot or allow to cool completely and store in an airtight container in the fridge for up to 4 days or in the freezer for up to 3 months.
Enjoy!
Recipe by Andrea's Passions at https://www.andreaspassions.com/recipes/nonnas-perfect-ragu-bolognese/