In a large skillet over medium heat, cook the bacon strips until crispy and golden brown, about 8–10 minutes. Transfer to a paper towel-lined plate to cool and crumble.

Finely dice the red onion and cube the cheddar cheese.

In a medium mixing bowl, whisk together the sour cream, mayonnaise, apple cider vinegar, Worcestershire sauce, parsley, sugar, salt, and black pepper until smooth.

In a large mixing bowl, combine the frozen peas, diced red onion, crumbled bacon, and cubed cheddar cheese.

Pour the dressing over the pea mixture and gently fold until everything is evenly coated.

Cover the bowl and refrigerate for at least 2 hours to allow flavors to meld.

Before serving, stir gently, taste, and adjust seasoning if necessary.