Church's Chicken Mashed Potatoes Recipe: Celery Crown Crunch Over Buttery Herb Velvety

This Church's Chicken mashed potatoes recipe delivers the perfect harmony of crispy celery crowns and velvety herb-infused potatoes—exactly how they should taste. 💛 I developed this while perfecting my Southern fried chicken technique at The Smoky Pig, where we served 2,000 pounds of pork weekly.

The secret lies in the celery crown topping, which adds a satisfying crunch without overpowering the buttery potato base.

The recipe begins with russet potatoes boiled until fork-tender, then mashed with butter, cream, and fresh herbs for that signature velvety texture. Meanwhile, the celery crown topping—made with celery, butter, and a touch of flour—bakes until golden and crispy, creating the perfect contrast.

This method ensures every bite delivers both comfort and texture, just like the original.

What you’ll achieve is a side dish that’s restaurant-quality—creamy, flavorful, and topped with that addictive crunch. The herb-infused mashed potatoes pair perfectly with the crispy celery crown, making this the ultimate Southern-inspired side.

Ready in about 45 minutes, it’s ideal for serving alongside fried chicken or as a standalone dish.

For extra depth, I recommend brining the potatoes for 30 minutes before cooking to enhance their natural flavor. The celery crown can also be made ahead and reheated, so you can focus on the main course. Let’s get started on this crowd-pleasing classic!

Ingredients for church's chicken mashed potatoes

Russets, rosemary, and crispy celery crowns—this is the perfect Southern side to elevate fried chicken.

The russet potatoes are non-negotiable—Idaho-grown ones from Costco
or Trader Joe's have the best texture. Look for firm, blemish-free tubers; the bigger the better for that buttery, velvety finish. Fresh rosemary and thyme from the grocery store's produce section (not the sad dried bundles) make all the difference—Whole Foods or local markets usually have the freshest. For the celery crown, grab crisp, pale green celery with tight stalks—no yellow or stringy bits. The butter? Plugrá or Land O'Lakes work perfectly, but if you're feeling fancy, European-style unsalted from Gourmet Gift Baskets adds a luxurious touch.

No fresh rosemary? Dried works at half the amount, but trust me, it's worth tracking down. Short on celery? Substitute finely chopped fennel for a slightly sweeter twist. The flour for the celery crown can be swapped for cornstarch if you're gluten-free, but keep the ratio the same. If you're brining the potatoes and run out of salt, lightly salted butter can bridge the gap in a pinch—just reduce the kosher salt by half. And if you're making this ahead, the celery crown can be prepped and stored in the fridge for up to 2 days before baking, saving you time on game day.

Brined potatoes keep for 3 days in the fridge, though they're best used fresh. The celery crown topping? Make it 1 day ahead—it reheats beautifully and intensifies in flavor. For leftovers, store the mashed potatoes in an airtight container with a sprinkle of plastic wrap pressed on the surface to prevent that dreaded gray film. The celery crown can be reheated straight from the fridge at 350°F for 5-7 minutes, or frozen for up to 3 months—just bake straight from frozen, adding 2-3 minutes. Pro tip: Double the celery crown recipe and freeze half; it's perfect for last-minute gatherings.

Step-by-step instructions for Church's chicken mashed potatoes

Here's how to create velvety herb mashed potatoes with a crispy celery crown—just like Church's does it!

Place the 2.5 lb russet potatoes in a large pot and cover with the 4 cups water. Add 1.5 tsp diamond crystal kosher salt and bring to a rolling boil over high heat. Once boiling vigorously, reduce heat to medium-high and cook for 15 minutes.

Here's the thing—parboiling breaks down the starches so they absorb the butter and cream like sponges. When the 15 minutes are up, drain the potatoes in a colander and return them to the pot. This step prevents gummy potatoes later. Let them steam-dry for 1 minute to remove excess moisture before mashing.

In a small saucepan, combine the 0.5 cup unsalted butter with the 0.25 cup fresh rosemary and 0.25 cup fresh thyme leaves. Melt over low heat for 2 minutes, then remove from heat. Let the mixture sit for 5 minutes to infuse the flavors—this is where the magic happens.

While that infuses, crush the 0.5 tsp black peppercorns in a mortar and pestle or between two spoons. Strain the herb butter through a fine-mesh sieve to remove any herb stems, then whisk in the 0.5 cup heavy cream and crushed peppercorns. This creates a luxurious, fragrant base that'll elevate your mashed potatoes from ordinary to extraordinary.

Using a potato masher or ricer, work the hot potatoes into the herb butter mixture. I like to do this in batches to ensure even distribution of the flavorful butter. Press the potatoes through a ricer for ultra-smooth texture, or mash vigorously by hand if you prefer rustic ridges.

Here's the critical part: keep the potatoes warm while you make the celery crown. Spread them in a shallow baking dish and tent loosely with foil. The residual heat will keep them warm and creamy while you crisp up the celery topping. Don't skip this step—warm potatoes are the secret to restaurant-quality texture.

In a small bowl, whisk together the 0.25 cup melted unsalted butter, 2 tbsp all-purpose flour, 0.5 tsp granulated garlic, and 1 tsp diamond crystal kosher salt until smooth. Add the 1 cup finely chopped celery stems and toss until fully coated. Spread the mixture on a parchment-lined baking sheet in an even layer.

Bake at 400°F for 15-20 minutes, stirring once halfway through, until the celery is deep golden brown and crispy. Watch closely—the celery burns easily, but you want it to stay crisp, not charred. Once golden, immediately sprinkle with the remaining 0.5 tsp black peppercorns for a peppery kick.

Transfer the mashed potatoes to a serving dish and create a well in the center. Spoon the crispy celery crown mixture into the well, then gently press it down to create a rustic crown. The contrast of creamy potatoes with crispy celery is what makes these mashed potatoes truly special.

Serve immediately while the celery crown is still crisp and the potatoes are warm. The first bite should deliver that perfect combination of velvety herb potatoes with a satisfying crunch from the celery topping. This is the kind of dish that'll have everyone asking for seconds!

Essential equipment for great church's chicken mashed potatoes

Potato Prep Essentials

Start with a potato ricer or hand masher—I swear by my OXO Good Grips ricer for that ultra-smooth texture. For brining, a large stainless steel pot (like my All-Clad 8-quart) is essential to hold the potatoes and water.

Don’t skimp here: a good pot ensures even cooking and prevents boiling over. 🥔

Herb Infusion Tools

A fine-mesh sieve (I use Norpro) is critical for straining herb butter to remove stems—no one wants a mouthful of rosemary stems! For crushing peppercorns, a mortar and pestle or even a rolling pin works, but I prefer the precision of a microplane for even finer control.

Fresh herbs release their oils best when finely chopped, so invest in a sharp chef’s knife (my Wüsthof never lets me down).

Celery Crown Crispy Kit

For the celery crown, a baking sheet with edges (like Chicago Metallic) prevents spills, and parchment paper is non-negotiable—it ensures even browning and easy cleanup.

A whisk (I love my Cuisinart) blends the butter, flour, and garlic into a smooth paste, while a spatula helps spread the celery mixture evenly. Preheat your oven with a thermometer (like Thermoworks Smoke) to confirm it hits 400°F—celery crowns burn fast! 🔥

Serving & Storage Gear

Serve these mashed potatoes in a shallow ceramic dish (like Le Creuset) to showcase the celery crown. For leftovers, glass airtight containers (I use Pyrex) preserve texture better than plastic.

A kitchen scale (my OXO digital) ensures precise measurements for the celery crown topping—every gram counts for that perfect crunch. And trust me, a fine-mesh strainer comes in handy for draining the potatoes efficiently.

Budget-Friendly Swaps

No ricer? A potato masher works just fine—just mash more vigorously. Skip the sieve? Use a clean kitchen towel to strain the herb butter. For the celery crown, a cookie sheet replaces a baking sheet if you’re in a pinch.

And if you’re brining, a large bowl (like a Dutch oven) works in a pinch, though it won’t hold as much. The key is adapting without sacrificing texture or flavor!

Frequently asked questions