Thrasher’s French fries are a boardwalk icon from Ocean City, Maryland, known for their thick-cut, skin-on style, cooked in peanut oil until crispy outside and fluffy inside. Unlike most fries, they’re served with a splash of malt vinegar and a sprinkle of salt rather than ketchup, letting the potato and oil shine. This recipe recreates that signature texture and flavor at home using a double-fry method and simple, quality ingredients.
Ingredients
- 4 large russet potatoes (about 2 lb / 900 g), unpeeled
- Peanut oil, for frying (about 6 cups / 1.4 L)
- Coarse sea salt or kosher salt, to taste
- Malt vinegar, for serving
Instructions
- Scrub the potatoes thoroughly under cold water, then pat dry. Do not peel them—the skin is essential for the Thrasher’s texture. Cut each potato lengthwise into 1/2-inch (1.25 cm) thick slices, then stack the slices and cut them into 1/2-inch (1.25 cm) wide sticks. Keep the sticks uniform so they cook evenly.
- Place the cut fries in a large bowl and cover with cold water. Swirl them around to release excess starch, then drain and rinse again. Spread the fries on a clean kitchen towel or paper towels and pat them completely dry. Any moisture on the surface will cause dangerous oil splattering.
- In a large, heavy-bottomed pot (like a Dutch oven), pour in the peanut oil. Attach a deep-fry thermometer to the side. Heat the oil over medium-high heat to 325°F (163°C).
- Once the oil reaches temperature, carefully add about one-third of the fries (do not overcrowd). Fry for 5–6 minutes, stirring gently with a slotted spoon, until the fries are soft and pale golden, but not browned. They should be cooked through but not crispy. Remove with the slotted spoon and drain on a wire rack set over a baking sheet. Repeat with the remaining batches, letting the oil return to 325°F (163°C) between batches.
- After all the fries have had their first fry, increase the oil temperature to 375°F (190°C). Working in batches again, fry each batch for 2–3 minutes, until deep golden brown and very crispy. Remove and drain on fresh paper towels or a wire rack.
- Immediately sprinkle generously with coarse salt while the fries are still hot. Serve right away with malt vinegar on the side for drizzling.
Tips
- Peanut oil is key: Thrasher’s uses peanut oil for its high smoke point and neutral flavor. If you have a peanut allergy, use canola or vegetable oil; the fries will still be crispy but with a slightly different flavor.
- Don’t skip the double fry: The first fry at a lower temperature cooks the inside, and the second at a higher temperature creates the crispy crust. Skipping the first fry results in soggy, undercooked centers.
- Dry the potatoes thoroughly: After rinsing, any water left on the fries will cause the oil to splatter and can make the fries steam instead of crisp. Use a clean kitchen towel and press gently.
- Season immediately: Salt sticks best when the fries are hot and slightly oily. If you salt too early, the salt may not adhere; if you wait too long, the fries may absorb the salt unevenly.
Serving Suggestions
Serve these fries in a paper cone or a large bowl, with malt vinegar in a small squirt bottle or a shallow dish for dipping. They pair beautifully with a classic cheeseburger, fried chicken, or a crab cake sandwich for a boardwalk-inspired meal. For a fun twist, offer a side of creamy garlic aioli or a simple ketchup, though the traditional way is to enjoy them with just salt and vinegar.
Variations
- Spicy Fries: After frying, toss with a pinch of cayenne pepper or smoked paprika along with the salt.
- Garlic-Parmesan: While hot, toss with melted butter, minced garlic, and grated Parmesan cheese.
- Sweet Potato Version: Substitute sweet potatoes for russets. Reduce the first fry time to 4–5 minutes and the second fry to 2 minutes, as sweet potatoes cook faster and can burn.
- Herbed Salt: Mix dried rosemary, thyme, or oregano into the coarse salt before sprinkling.
Storage and Reheating
These fries are best served immediately, but leftovers can be stored in an airtight container in the refrigerator for up to 2 days. To reheat, spread them on a baking sheet and bake at 400°F (200°C) for 5–7 minutes, or until hot and crispy. You can also reheat them in an air fryer at 375°F (190°C) for 3–4 minutes. Avoid microwaving, as it will make them soggy. Do not leave fries at room temperature for more than 2 hours; refrigerate promptly.
Frequently Asked Questions
Can I use a different type of potato? Yes, but russets are ideal because they are high in starch and low in moisture, which yields a fluffy interior and crispy exterior. Yukon Golds will work but will be slightly less crispy and more buttery in flavor. Waxy potatoes like red or new potatoes are not recommended as they hold too much moisture and won’t crisp well.
Do I have to peel the potatoes? No, and for this recipe, leaving the skin on is essential. It adds texture and helps the fries hold their shape during frying. If you prefer peeled fries, the cooking times may need to be reduced slightly, and the texture will be softer.
Can I make these in a deep fryer? Absolutely. Follow the same temperature settings and times. A deep fryer with a basket makes it easier to lower and raise the fries safely. Just be sure not to overfill the basket.
What if I don’t have a thermometer? You can test the oil temperature by dropping a small piece of potato in. If it sizzles and floats to the surface, the oil is ready. For the first fry, the oil should be at a gentle sizzle; for the second, it should be more vigorous. However, a thermometer is recommended for consistent results and safety.
Is peanut oil necessary? No, but it is the traditional choice. Peanut oil has a high smoke point and a neutral taste that doesn’t overpower the potatoes. If you avoid peanuts, use a refined oil like canola, sunflower, or vegetable oil. The fries will still be delicious, though the flavor will be slightly different.
Why are my fries soggy? Sogginess usually happens when the oil isn’t hot enough, the fries are overcrowded, or the potatoes weren’t dried properly. Make sure the oil is at the correct temperature, fry in small batches, and thoroughly dry the potatoes before frying.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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