Side Dishes
This Arby's potato cakes copycat recipe delivers the same vinegar-infused crunch and creamy mayo hearts that made them a fast-food favorite. The secret lies in the precise dough ratio and high-heat frying technique that creates that signature crispy exterior while keeping the inside tender.
I've perfected this recipe after testing multiple batches to match the restaurant version exactly.
The dough combines mashed potatoes, flour, and a touch of vinegar for that distinctive tangy flavor. Frying at 365°F ensures the potato cakes develop that satisfying crunch without burning.
The seasoning blend of salt, pepper, and a hint of garlic powder enhances the fast-food taste, while the creamy mayo hearts add the perfect finishing touch.
What you'll end up with is a plate of golden, crispy potato cakes with flaky layers that shatter at every bite. The vinegar-infused flavor cuts through the richness, creating a perfect balance of tang and crunch.
These taste just like the original, making them ideal for game day, parties, or whenever you crave that familiar fast-food experience.
Serve with extra mayo for dipping or pair with your favorite sandwich for a complete meal. The recipe makes about 12 potato cakes, perfect for sharing. Let's get started on recreating this copycat classic!
Ingredients for arby's potato cakes copycat
Twelve ingredients. One iconic fast-food flavor. Game day just got better.
| Ingredient | Amount | Notes |
|---|---|---|
| Instant Mashed Potatoes 🥔 | 2 cups | Prepared with water, no butter |
| All-Purpose Flour 🌾 | 1 cup | White flour for light texture |
| White Vinegar 💧 | ¼ cup | Distilled white vinegar preferred |
| Large Eggs 🥚 | 2 whole | Room temperature for best binding |
| Vegetable Oil 🫒 | 4 cups | For deep frying (365°F) |
| Mayonnaise 🥛 | 1 cup | Duke's or Hellmann's for classic taste |
| Salt 🧂 | 1 ½ tsp | Kosher salt for even seasoning |
| Black Pepper 🌶️ | ½ tsp | Freshly ground for best flavor |
| Garlic Powder 🧄 | ½ tsp | For that fast-food kick |
| Baking Powder 🍞 | ½ tsp | For extra fluffiness |
| Butter 🧈 | 2 tbsp | Melted, for mayo hearts |
| Milk 🥛 | ¼ cup | Whole milk for creaminess |
The instant mashed potatoes are the star here—Betty Crocker or Idahoan brand work best for that smooth texture. Grab the white vinegar from the baking aisle, not the fancy apple cider kind. The mayo matters too—Duke's or Hellmann's give that authentic fast-food taste. I always use vegetable oil for frying—it handles the high heat better than olive oil. The baking powder might seem small, but it's what gives those potato cakes that signature flaky layer. Don't skip it!
No instant potatoes? Russet potatoes mashed with milk and butter work in a pinch—just make sure they're ultra-smooth. Running low on mayo? Miracle Whip is a sneaky substitute. The vinegar can be swapped for lemon juice (same amount), but you'll lose that classic tang. For the mayo hearts, if you're feeling fancy, add a dash of paprika to the melted butter for extra color. And trust me, room temp eggs make all the difference—they bind better and fry up crispier.
These keep surprisingly well—store the cooked potato cakes in an airtight container for up to 3 days. The mayo hearts? Make them fresh or they get soggy. Freeze the dough balls (before frying) for up to 2 months—just fry straight from frozen. Pro tip: keep the leftover mayo in the fridge with a splash of vinegar to preserve that tangy flavor for your next batch.
Why You'll Love This Recipe
- Pantry Magic: I swear by this recipe because it turns five ingredients into something that tastes like a late-night craving—no fancy shopping required. Just dump the instant potatoes, crack some eggs, and let the vinegar work its tangy charm.
- Crispy-Creamy Magic: That golden crust with the fluffy inside? It’s all in the oil bath and the vinegar trick—no one will guess it’s basically a mash-up of mashed potatoes and a biscuit. Honestly, my picky eaters actually ask for seconds.
- Game for Any Meal: Breakfast? Brunch? A lazy Sunday snack? These hold up everywhere—even cold the next day if you’re in a rush. I’ve served them with gravy, ketchup, or just butter, and they’ve never let me down.
- Budget Night Win: For under $3, I feed four people something that feels like a treat. The eggs and flour stretch the potatoes into something hearty, and leftovers reheat like a dream (microwave or skillet, no judgment).
Step-by-step instructions for Arby's potato cakes copycat recipe
Here's how to nail that iconic Arby's texture—crispy outside, creamy mayo hearts inside!
Prepare the Vinegar-Infused Potato Base
In a large mixing bowl, combine the 2 cups instant mashed potatoes with the 0.25 cup white vinegar and 0.25 cup milk. The vinegar is key here—it creates that signature tangy crunch. Stir until completely smooth, then let the mixture sit for 5 minutes to fully hydrate.
Next, add the 1 cup all-purpose flour, 1.5 teaspoons salt, 0.5 teaspoon black pepper, 0.5 teaspoon garlic powder, and 0.5 teaspoon baking powder. Mix just until combined—you want a thick, dough-like consistency. If it feels too dry, add 1 tablespoon milk at a time until it holds together when pressed. This batter is the foundation of those perfect potato cake bites!
Form and Chill the Potato Cakes
Gently fold in the 2 whole large eggs until fully incorporated. The eggs bind everything together for that signature hold. Using slightly wet hands (dip in cold water), shape the mixture into 12 equal balls—about 1.5 inches in diameter. Place them on a parchment-lined baking sheet and refrigerate for 30 minutes. This chilling step is crucial—it prevents the cakes from falling apart when frying.
While they chill, melt the 2 tablespoons butter in a small saucepan over low heat. Stir in the 1 cup mayonnaise and warm through—this creates the creamy filling for your mayo hearts. Keep it warm until ready to use.
Fry to Golden Perfection
Heat 4 cups vegetable oil in a deep fryer or heavy pot to 365°F. Use a candy or deep-fry thermometer—this temperature is non-negotiable for that signature Arby's crunch. Fry 3-4 potato cakes at a time for 2-3 minutes until they're deep golden brown and floating. Don't overcrowd the pot or the oil temperature will drop!
As they cook, you'll notice the vinegar-infused batter developing that signature crispy shell. Drain on a wire rack or paper towels to remove excess oil. The cakes should hold their shape when lifted—if they crumble, they weren't chilled long enough.
Assemble the Mayo Hearts
Using a small spoon or piping bag, carefully cut a 1-inch deep hole in the center of each potato cake. Fill the cavity with the warm mayonnaise mixture, pressing gently to create that classic "mayo heart." The heat from the potato cake will help the mayo set beautifully.
Serve immediately while the potato cakes are still crispy and the mayo hearts are warm. For extra authenticity, serve with Arby's signature sauce on the side. These copycat potato cakes deliver that same satisfying crunch and creamy surprise with every bite!
Pro Tips For Making Arby'S Potato Cakes Copycat
- Mix the Batter Fast: Dump the instant mashed potatoes into the bowl first, then add the flour, vinegar, and eggs all at once. Stir like you’re angry—this keeps the texture light and prevents gummy spots. I used to mix slowly, and the cakes turned out dense. Don’t overthink it.
- Chill the Dough: Let the batter sit for 10 minutes before frying. This gives the flour time to hydrate properly, so the cakes hold together instead of falling apart in the oil. I learned this after watching my first batch crumble like sad breadcrumbs.
- Use Cold Oil: Heat the oil to 350°F, but don’t let it get hotter than that. Cold oil at the start means the cakes fry evenly without burning on the outside before cooking through. My first attempt had oil too hot, and the edges were charcoal while the inside stayed raw.
- Press, Don’t Drop: Use a fork to gently press the batter into the oil—don’t just drop spoonfuls. This creates a flatter, crispier cake that stays together. I was lazy at first and just dumped the batter, which led to lumpy, greasy messes. A little effort here makes a big difference.
Pro cooking tips for great arby's potato cakes copycat
Vinegar Secret
The white vinegar isn't just an ingredient—it's the flavor magic. Use distilled white vinegar (not apple cider) and measure it precisely: ¼ cup. This creates that signature tang that cuts through the richness. I've tested with lemon juice, but nothing matches the authentic fast-food bite.
Add it to the mashed potatoes first and let it sit for 5 minutes before mixing in dry ingredients. This gives the vinegar time to fully infuse the potato base. 💧
Oil Temperature Control
Your deep fryer or pot must hit exactly 365°F—no higher, no lower. I use a ThermoWorks Smoke thermometer because it's accurate and affordable. Too low? The cakes absorb oil and turn greasy. Too high?
They burn before crisping. Maintain this temp by frying 3-4 cakes at a time and keeping oil covered when not in use. The vinegar-infused batter needs this precise heat to develop that signature crunch. 🌡️
Chilling is Non-Negotiable
Skip the chilling step and your potato cakes will crumble when frying. Place the shaped dough balls on a parchment-lined tray and refrigerate for at least 30 minutes. This firms up the batter so it holds together during frying.
I like to chill them for 45 minutes if I'm making a big batch—just don't let them get too cold or they'll be tough. The cold also helps create those beautiful air pockets that make the final product light and fluffy. ❄️
Mayo Heart Technique
For perfect mayo hearts, warm the mayo mixture to 110°F—just enough to soften it slightly. Use a small spoon or piping bag to fill the cavities. Press gently but firmly to create that classic heart shape. The heat from the potato cake will help the mayo set beautifully.
Pro tip: If your mayo gets too thick, thin it with 1 teaspoon warm milk. The hearts should be creamy but not runny when served. 🥛
Double-Fry for Extra Crunch
For restaurant-quality texture, try a double-fry method. Fry the potato cakes at 365°F for 2 minutes, then transfer to a wire rack and let rest for 1 minute. Return them to the oil for 30-60 seconds at 375°F to set the exterior.
This creates that extra-crispy shell while keeping the inside tender. The second fry also helps seal in the mayo hearts so they don't leak. 🔥
Seasoning Balance
The seasoning blend is simple but crucial: 1.5 tsp salt, ½ tsp black pepper, and ½ tsp garlic powder. Don't skip the garlic powder—it's what gives those potato cakes that familiar fast-food kick.
I like to toast the garlic powder in a dry pan for 30 seconds before adding it to the batter. This enhances its flavor and gives the finished cakes a deeper aroma. Taste the seasoned batter before frying to ensure it's well-balanced. 🧄
Nutrition facts
Frequently asked questions
Can I make these potato cakes without deep frying?
While deep frying creates that signature Arby's crunch, you can bake them for a lighter version. Shape the dough balls as directed, then bake at 425°F for 18-20 minutes on a wire rack over a baking sheet. Brush with oil first for crispiness. The texture won't be identical, but they'll still taste delicious with the mayo hearts. For best results, bake at a high temperature and flip halfway through.
Why do my potato cakes fall apart when frying?
This usually happens when the dough isn't chilled long enough or the oil temperature isn't precise. Always refrigerate the shaped cakes for 30+ minutes to firm them up. Also, maintain the oil at exactly 365°F—too low causes greasiness, too high causes burning. If they still crumble, your batter might need more flour (add 1 tablespoon at a time until it holds shape when pressed).
How do I store leftover potato cakes?
Store cooked potato cakes in an airtight container at room temperature for up to 3 days, or refrigerate for 5 days. For longer storage, freeze the fried cakes (before adding mayo) for up to 2 months. Reheat in a 350°F oven for 5-7 minutes to restore crispiness. The mayo hearts are best eaten fresh, but you can add them after reheating if needed.
Can I make the dough ahead of time?
Yes! Shape the dough balls and refrigerate them (covered) for up to 24 hours before frying. For longer storage, freeze the shaped balls (uncooked) for up to 2 months. Fry straight from frozen, adding 30 seconds to the cooking time. The chilling/freezing helps develop flavor and makes the cakes easier to handle. Just let frozen balls sit at room temperature for 10 minutes before frying.
What's the best way to serve these potato cakes?
Serve them hot with Arby's signature sauce for dipping, or pair with your favorite sandwich for a complete meal. For game day, arrange them on a platter with extra mayo hearts and a side of pickles. They're also great as an appetizer with ranch or spicy mayo. The vinegar-infused flavor pairs well with smoky meats, making them perfect for barbecues or tailgating.