Step 2: Create the Creamy Base
In a medium mixing bowl, combine the softened cream cheese and sour cream.
Mix until the texture becomes smooth, creamy, and free of lumps.
Using softened cream cheese makes blending much easier and creates a silky filling.
Step 3: Add the Flavor Ingredients
Stir in the shredded cheddar cheese.
Add the crumbled bacon.
Mix in the chopped green onions or chives.
Add the garlic powder, onion powder, kosher salt, black pepper, and smoked paprika if using.
Stir everything together until evenly combined.
Taste the mixture and adjust the seasoning if desired.
Step 4: Fill the Celery Boats
Using a small spoon, butter knife, or piping bag, fill each celery piece with the cheese mixture.
Spread the filling evenly from end to end.
Smooth the top so it sits neatly inside the celery groove.
Arrange the filled celery boats on a serving platter or in a storage container.
A short chill in the refrigerator helps all the flavors come together and gives the filling the perfect texture.