In a large bowl, whisk together sour cream, mayonnaise, apple cider vinegar, sugar, salt, and pepper until well combined.
Add thawed peas, shredded cheese, diced red onion, and crumbled bacon to the bowl.
Gently mix everything together until evenly coated in the dressing.
Chill in the refrigerator for at least 1 hour before serving for best flavor.
Stir gently before serving and enjoy!