Place the bacon in a cold, large skillet, then turn the stove to medium-high heat.
Cook the bacon for 3-4 minutes until golden, then remove with a slotted spoon to a paper towel to drain.
Discard excess bacon fat, leaving behind 1 tablespoon. If short, add a little butter or olive oil.
Add the garlic and stir for 10 - 15 seconds until light golden.
Add the green beans and stir to coat in the garlicky bacon fat.
Add chicken broth, stir, bring to a simmer, then cover with a lid, and cook 3 minutes, stirring occasionally, until beans are crisp-tender, still bright green, and almost cooked to your liking (they will continue to cook in the creamy sauce).
Remove the lid and add the heavy cream, parmesan, sea salt, and freshly cracked black pepper to taste.
Stir, bringing to a simmer.
Lower the heat to medium-low and let it gently simmer for 2-3 minutes, until the cream thickens.
Taste and re-season if needed.
Transfer to a serving bowl, sprinkle with cooked bacon, and serve with extra Parmesan cheese.