Vegan Mongolian beef is a Chinese-American restaurant-style dish made here with chewy soy curls and a glossy, sweet-savory soy, ginger, and garlic sauce. The curls brown in a skillet before they’re coated in the quick sauce, making a satisfying weeknight main to serve over rice; versions of the familiar takeout dish vary.
Ingredients
- 8 oz (227 g) dry soy curls
- 4 cups (960 ml) hot water, for soaking
- 1/2 tsp (3 g) fine salt, for soaking
- 1/3 cup (40 g) cornstarch, for coating
- 2 tbsp (30 ml) neutral oil, such as canola or avocado oil, divided
- 1/2 cup (120 ml) low-sodium soy sauce
- 1/3 cup (80 ml) water, for the sauce
- 1/3 cup (67 g) packed light brown sugar
- 1 tbsp (15 ml) unseasoned rice vinegar
- 1 tsp (5 ml) toasted sesame oil
- 1 tbsp (6 g) finely grated fresh ginger
- 3 garlic cloves (about 9 g), finely minced
- 1/4 tsp (0.5 g) red pepper flakes, optional
- 2 tsp (5 g) cornstarch, for the sauce
- 1 tbsp (15 ml) cold water, for the cornstarch slurry
- 4 scallions (about 40 g), thinly sliced, white and green parts separated
Instructions
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Soak the soy curls. Put the dry soy curls in a large bowl and pour over the 4 cups of hot water. Stir in the salt and soak for 10 minutes, or until the curls are pliable all the way through. Drain them well in a colander. This short soak is enough for most brands; if a few thick pieces remain firm, give those pieces another couple of minutes in hot water.
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Dry and coat. When the curls are cool enough to handle, squeeze them firmly by handfuls over the sink to remove excess water. They should feel damp, not dripping; too much retained water makes them steam instead of brown. Tear unusually large pieces into bite-size strips. Toss the curls with the 1/3 cup cornstarch until lightly and evenly coated, breaking up any clumps with your fingers.
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Mix the sauce. In a small bowl, whisk together the soy sauce, 1/3 cup water, brown sugar, rice vinegar, sesame oil, ginger, garlic, red pepper flakes if using, and the white parts of the scallions. In a separate cup, stir the remaining 2 teaspoons cornstarch with 1 tablespoon cold water until smooth. Keep the slurry nearby; cornstarch settles quickly, so stir it again just before adding it later.
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Brown the curls in batches. Heat a large skillet over medium-high heat for about 1 minute, then add 1 tablespoon of the neutral oil. Add half the coated curls in a single layer and cook for about 4 minutes, turning occasionally, until browned in spots and crisp at the edges. Transfer them to a plate. Add the remaining oil and curls, and cook for another 4 minutes. If your skillet is small, work in three batches rather than crowding it.
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Simmer the sauce. Lower the heat to medium and pour the sauce mixture into the same skillet, scraping up the browned bits. Bring it to a gentle simmer for about 2 minutes, stirring so the garlic does not scorch. Stir the cornstarch slurry once more, pour it into the skillet, and cook for about 1 minute, stirring constantly, until the sauce turns glossy and lightly thickened.
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Finish and serve. Return the browned soy curls to the skillet and toss for 1 to 2 minutes, just until they are hot and evenly coated. Fold in most of the green scallion tops, then taste the sauce. Add a splash of water if it has become too thick, or simmer briefly if you prefer it stickier. Scatter the remaining scallions over the top and serve right away.
Tips
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Squeeze out the soaking water. Soy curls absorb a surprising amount of liquid. Pressing them well helps the coating cling and gives the skillet a chance to brown them. If they still seem wet after squeezing, spread them on a clean towel and pat them dry before adding the cornstarch.
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Use a wide pan and leave space. Crowded curls release moisture and turn soft rather than developing browned edges. A 12-inch (30 cm) skillet is useful for this quantity, but batches work in a smaller pan. Let each batch sit undisturbed for a minute or two between turns instead of constantly stirring.
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Adjust the sauce to your soy sauce. Low-sodium soy sauce keeps the finished dish from becoming overly salty as the sauce reduces. If you only have regular soy sauce, start with 1/3 cup (80 ml) soy sauce plus 3 tablespoons (45 ml) water, then taste before adding more. Tamari works as a gluten-free alternative when the other ingredients are certified gluten-free.
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Keep the curls crisp as long as possible. The sauce softens the coating, so toss the curls in just before serving. For a more tender, saucy result, let them simmer for an extra minute; for more browned texture, serve as soon as they are coated.
Serving Suggestions
Serve the soy curls over steamed jasmine or long-grain rice, which catches the sweet-salty sauce. Brown rice also works, though its firmer texture makes the plate feel heartier. For a lower-effort side, use rice cooked ahead and reheated while the sauce simmers. Spoon any extra sauce from the skillet over the rice rather than leaving it behind.
Add a vegetable to balance the rich glaze: quickly steamed broccoli, sautéed bok choy, snap peas, or thinly sliced cabbage all fit well. Keep the vegetables simply seasoned so they do not compete with the sauce. A sprinkling of sesame seeds, extra scallions, or a few drops of chili oil can finish the bowls. If serving a group, put the soy curls and rice in separate bowls so each person can choose how much sauce they want.
Variations
Use seitan or plant-based beef strips: If soy curls are hard to find, use 12 oz (340 g) sliced seitan or store-bought vegan beef strips. Skip the soaking step, check the package directions, and pat the pieces dry before coating. Seitan is already hydrated and often chewier, while prepared strips can vary in salt and oil; taste the sauce before adding any extra salt. Use a light dusting of cornstarch if the pieces are moist, rather than automatically adding the full coating amount.
Make it gluten-free: Choose soy curls that are labeled gluten-free, use tamari instead of soy sauce, and confirm that the vinegar and any packaged substitutes are gluten-free. Soy curls are made from soy, not wheat, but labels and manufacturing practices differ. If using a plant-based beef product, check its ingredients carefully because many contain wheat gluten.
Change the heat or sweetness: Leave out the red pepper flakes for a mild sauce, or increase them to 1/2 teaspoon (1 g) for a gentle kick. For less sweetness, reduce the brown sugar to 1/4 cup (50 g); the sauce will be less sticky and more distinctly salty and savory. A little extra rice vinegar can brighten a sauce that tastes too sweet, but add it a teaspoon at a time.
Add vegetables to the skillet: Stir-fry 2 cups (about 180 g) of broccoli florets, sliced bell pepper, or mushrooms before making the sauce. Cook them until just tender, transfer them to the plate with the curls, then make the sauce in the pan. Return both the vegetables and curls at the end. The extra ingredients will absorb some glaze, so add a tablespoon or two of water if needed.
Storage and Reheating
For food safety, refrigerate leftovers within 2 hours of cooking. Store the soy curls and rice separately in airtight containers for up to 3 to 4 days. The coating softens as it sits in the sauce, but the flavor remains useful for meal prep. If you know you will have leftovers, setting aside some plain rice and keeping it separate helps the portions reheat more evenly.
Reheat a portion in a skillet over medium heat with 1 to 2 tablespoons (15 to 30 ml) of water, stirring gently until hot throughout. Add another small splash of water if the sauce has become very thick. You can also microwave it in a covered, microwave-safe container, stirring halfway through and allowing a brief rest so the heat evens out. USDA FSIS guidance is to reheat leftovers to 165°F (74°C); check the center with a food thermometer. Freezing is possible for up to 2 months, though thawed soy curls will be softer. Thaw overnight in the refrigerator and reheat thoroughly.
Frequently Asked Questions
What are soy curls, and where can I find them?
Soy curls are dried, seasoned-free strips made from whole soybeans. They are usually sold in shelf-stable packages at natural-food stores, some larger grocery stores, or online. Look near dried meat alternatives or in the bulk and specialty-food sections. Keep unopened curls in a cool, dry cupboard and follow the package guidance after opening.
Can I make vegan Mongolian beef without soy curls?
Yes. Seitan, vegan beef strips, or thickly sliced king oyster mushrooms can stand in. Seitan and prepared strips have different textures and may already contain salt, so adjust the coating and taste the sauce before serving. Mushrooms release more moisture and will not have the same chewy, beef-like texture; brown them in a roomy skillet and cook off their liquid before adding the sauce.
Why did my soy curls turn out soggy?
The most common reasons are leaving too much soaking water in the curls, crowding the skillet, or adding the sauce too early. Squeeze the curls firmly, cook them in a single layer in batches, and brown them before making the sauce. Once coated, they soften naturally, so for the most edge texture, serve immediately rather than letting them sit in the pan.
Can I prepare the sauce in advance?
Yes. Whisk together the soy sauce, water, sugar, vinegar, sesame oil, ginger, garlic, pepper flakes, and scallion whites up to 2 days ahead, then refrigerate in a covered container. Stir it before using. Mix the cornstarch slurry separately just before cooking, since it can settle, and do not add it to the cold sauce in advance.
Is this recipe spicy?
Not as written if you leave out the optional red pepper flakes; the main flavor is sweet, savory, gingery, and garlicky. For a mild warmth, use the listed 1/4 teaspoon. To make it hotter, add more flakes or serve chili oil on the side so diners can choose their own level of heat.
Related
- Mongolian Tofu Recipe with a Sticky Garlic-Ginger Sauce
- Mongolian Chicken Recipe for a Fast Dinner
- Mongolian Ground Beef Ramen Recipe
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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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