Heat your olive oil in a large skillet over medium heat for about one minute. Add the frozen corn and cook for 3-4 minutes, stirring occasionally until it starts to thaw and slightly soften. You'll notice the kernels get a bit golden on the edges, which is exactly what you want here.
While the corn's cooking, mix your sour cream and mayonnaise together in a small bowl until combined. Don't overthink this step—just stir it until you don't see any white streaks anymore. This is your creamy base for the entire BBQ corn dip party.
Once the corn looks soft and slightly toasted, reduce heat to low and add your shredded chicken to the skillet. Stir it around for about 2 minutes so everything gets warm and cozy together. The chicken should be heated through, but you're not trying to cook it hard—it's already cooked.
Pour your sour cream and mayo mixture into the skillet with the corn and chicken. Add the barbecue sauce, smoked paprika, garlic powder, onion powder, and black pepper all at once. Stir constantly for about 2-3 minutes until you've got a creamy, cohesive dip that looks totally uniform.
Sprinkle the shredded cheddar cheese over top and stir it in for about 2 minutes until it melts completely. Don't crank the heat up—keep it on low or the cheese gets all weird and breaks. I always taste right at this point and adjust the seasonings because you might want extra paprika or a little more barbecue sauce.
Transfer everything to a serving dish if you're bringing it somewhere, or just serve straight from the skillet for minimum cleanup. Garnish with the fresh cilantro on top for color and a little fresh brightness that cuts through all that richness. This sharing appetizer stays warm for about 20 minutes before it starts to cool down.
If you're making this at home and serving it immediately, drizzle a tiny bit more olive oil on top and maybe some extra cilantro. Keep it on a low heat setting if your party's gonna last longer than an hour—nothing's worse than cold dip. The whole thing reheats beautifully though, so don't stress if you make it ahead.