Add the rinsed peas to the pot and let the peas cook in the bacon fat for a few minutes, mixing occasionally.
Add enough water to cover the peas. Bring to a boil. Let the peas boil for a minute, then reduce the heat and simmer on low for 30 to 60 minutes until the peas are tender. Add the salt and pepper and vinegar and let cook for a few more minutes for flavors to develop.
Serve in a bowl and enjoy your southern treat.