Bennigan’s Potato Soup Recipe: Creamy Comfort in Every Bite

Recreating Bennigan’s signature potato soup at home delivers that same creamy, comforting experience you remember from the restaurant. This version captures the rich, velvety texture and balanced seasoning that made the original so beloved, using simple ingredients and precise techniques to achieve professional results.

The secret lies in the combination of russet potatoes for ideal texture, a touch of smoked paprika for depth, and careful blending to create that signature smoothness. You’ll achieve restaurant-quality creaminess without heavy cream, making it both indulgent and approachable for home cooks. Perfect for chilly evenings when you crave that familiar, satisfying comfort in every spoonful.

Ingredients for Bennigan’s Potato Soup

Russet potatoes, smoky paprika, and sharp cheddar recreate that Bennigan’s magic with pantry-friendly staples.

The potatoes are everything here—russets break down perfectly for that velvety texture. Look for firm, blemish-free spuds at the store (I swear by Trader Joe’s for consistency). The smoked paprika isn’t just for color; it’s the secret to that restaurant depth. Penzeys carries an exceptional version, but any grocery store brand works in a pinch. For the cheddar, Cabot’s sharp white cheddar melts like a dream—avoid pre-shredded (it’s coated in anti-caking agents that ruin the texture).

Need to lighten it up? Swap half-and-half for the milk—still creamy but richer. No smoked paprika? Regular paprika plus a pinch of cayenne gets you 80% there. For a dairy-free version, cashew cream and nutritional yeast mimic the cheddar’s tang (though the texture won’t be identical). The flour can be gluten-free 1:1 blend if needed, but whisk it extra well to avoid clumps. And if you’re out of fresh chives, green onions or parsley work for garnish (just add them right before serving).

This soup actually improves overnight—3 days in the fridge is ideal, with flavors deepening each day. Freeze portions for up to 2 months (leave out the dairy, add it fresh when reheating). The cheese may separate slightly when thawed; just whisk it back together over low heat. Pro tip: Store garnishes separately to keep the chives vibrant green and the cheese from absorbing moisture.

Step-by-Step Instructions for Bennigan’s-Style Potato Soup

Here’s how to build that signature creamy texture and smoky depth that makes this soup so comforting.

Step 1: Sauté the Aromatic Base

Melt 2 tablespoons of the unsalted butter in a large Dutch oven over medium heat. Add the finely diced yellow onion and cook for 6-8 minutes, stirring occasionally, until the onions become translucent and just begin to caramelize around the edges. This slow cooking develops the sweetness that balances the smoky elements we’ll add later.

Watch the heat carefully—you want gentle sizzling, not aggressive bubbling. The onions should soften without browning too quickly. I like to add a pinch of the kosher salt at this stage to help draw out moisture and prevent burning. When they’re ready, you’ll notice a subtle sweet aroma filling your kitchen.

Step 2: Build the Roux and Add Liquids

Sprinkle the 0.25 cup all-purpose flour over the cooked onions and stir constantly for 2 minutes to cook out the raw flour taste. The mixture will form a thick paste and turn a light golden color. This roux is what gives the soup its velvety body.

Gradually whisk in the 4 cups vegetable broth, starting with small additions to prevent lumps from forming. Once smooth, pour in the remaining broth along with the 2 cups whole milk. Add the smoked paprika, garlic powder, dried thyme, remaining 1.25 teaspoons kosher salt, and 0.5 teaspoon freshly ground black pepper. Bring to a gentle simmer over medium-high heat, then reduce to medium-low.

Step 3: Cook the Potatoes to Perfect Tenderness

Add the 2.5 lb diced russet potatoes to the simmering liquid. The potatoes should be completely submerged—if not, add a splash more broth or water. Cook uncovered for 15-18 minutes, stirring occasionally, until the potatoes are fork-tender but still hold their shape.

You’ll know they’re done when a fork slides in easily but the cubes don’t fall apart. The broth will thicken slightly as the potatoes release their starch. This is when the soup transforms from a thin liquid to something substantial and comforting. Taste and adjust seasoning if needed—the smoked paprika should be present but not overpowering.

Step 4: Create the Creamy Cheese Base

Reduce heat to low and stir in the 1.5 cups sharp cheddar cheese one handful at a time, allowing each addition to melt completely before adding more. This gradual incorporation prevents the cheese from seizing up and keeps the texture smooth. The cheese will make the soup noticeably thicker and give it that signature golden hue.

Once all the cheese is melted, stir in the 0.5 cup sour cream and remaining 2 tablespoons unsalted butter. Let the soup simmer for an additional 5 minutes on low heat—this final cooking time allows all the flavors to meld together. The texture should be rich and creamy, coating the back of a spoon beautifully.

Step 5: Finish and Serve with Fresh Garnishes

Ladle the hot soup into bowls and let it sit for 2 minutes before garnishing—this brief rest allows the flavors to settle. Top each serving with a sprinkle of the 2 tablespoons fresh chives and an extra grind of black pepper. The chives add a bright, fresh contrast to the rich soup.

For the full Bennigan’s experience, serve with crusty bread or oyster crackers for dipping. The soup should be thick enough that a spoon stands up in it momentarily, yet still pourable. Each bite delivers that perfect balance of creamy texture, smoky depth, and comforting potato flavor that makes this recipe so special.

Common Mistakes When Making Perfect Results

Overcooking the Onions

One of the most common mistakes is letting the onions brown too much during sautéing. You want them translucent and sweet, not caramelized to a deep golden color. Overcooked onions will add bitterness that throws off the soup’s delicate balance. I keep my heat at medium and stir frequently—if they start browning too quickly, I reduce the heat immediately. 🌡️

Skipping the Roux

Some home cooks try to rush by skipping the flour-butter roux, but this is what gives the soup its velvety body. The 2 minutes of cooking the flour is crucial to eliminate the raw taste. If you skip this step, your soup will taste floury and thin. I whisk constantly during this phase to ensure even cooking and prevent lumps.

Undercooked Potatoes

Adding the potatoes before the broth simmers or removing them too soon results in grainy, undercooked cubes. The 15-18 minutes cook time is essential—they should be fork-tender but not falling apart. I test multiple cubes from different areas of the pot to ensure even doneness. Undercooked potatoes also prevent the soup from reaching its ideal creamy thickness.

Adding Cheese Too Fast

Dumping all the sharp cheddar at once causes it to clump and separate. The key is adding it one handful at a time, letting each addition melt completely before the next. I use low heat during this process and stir constantly in a figure-eight motion. This gradual method creates that smooth, restaurant-quality texture we’re after.

Boiling After Dairy

Once you’ve added the milk, sour cream, and cheese, never let the soup come to a boil. High heat causes the dairy to separate and curdle, ruining the creamy consistency. I maintain a gentle simmer at low heat and stir frequently. If you notice any separation, remove from heat immediately and whisk vigorously to re-emulsify.

Overblending the Soup

While some blending creates that signature texture, overdoing it makes the soup gummy and starchy. I use an immersion blender for just 10-15 seconds on low speed, leaving about half the potatoes intact. This gives you that perfect balance of creaminess with satisfying potato chunks in every bite. For best results, pulse rather than continuously blend. ✨

Frequently Asked Questions