Cook the Bacon: on a griddle over medium heat, cook bacon until crisp. Remove and set aside, leaving about 1 tablespoon of rendered fat.
Char the Vegetables: Increase the griddle heat to medium-high. Add the onion and jalapeño; cook 3–4 minutes until softened. Add garlic and cook for another 30 seconds. Once softened, add the corn and cook for 8–10 minutes, flipping as needed, until slightly charred. Remove the vegetables from the pan.
In a separate pan, melt the butter. Sprinkle flour in and stir for 1 minute to form a light roux. Add in the vegetable mixture, then Slowly whisk in heavy cream and milk, stirring constantly until thickened and smooth (about 3–5 minutes).
Off heat, stir in bacon, spices, apple cider vinegar, and cheddar cheese until melted and creamy. Season with more salt to taste.
Serve the creamed corn into bowls and garnish with chives before serving warm. Enjoy!