Slow Cooker Mongolian Beef

Directions

Step 1: Prep the Beef

Toss the thinly sliced beef in cornstarch until evenly coated. This helps create a slightly thickened, glossy sauce during cooking.

Step 2: Sear the Beef (Optional but Recommended)

In a large skillet, heat vegetable oil over medium-high heat. Quickly sear the beef slices in batches for 1–2 minutes per side until lightly browned. This step enhances flavor but can be skipped for a fully hands-off slow cooker method.

Step 3: Combine Ingredients in Slow Cooker

Place the beef in the slow cooker. In a small bowl, whisk together soy sauce, water, brown sugar, garlic, ginger, and red pepper flakes. Pour the sauce over the beef, stirring gently to coat.

Step 4: Cook

Cover and cook on low for 4–5 hours or on high for 2–3 hours until the beef is tender and flavorful.

Step 5: Thicken the Sauce (Optional)

If the sauce is too thin, mix 1 tablespoon cornstarch with 2 tablespoons water to create a slurry. Stir into the slow cooker and cook on high for an additional 15–20 minutes until thickened.

Step 6: Serve

Spoon the Mongolian beef over steamed rice or noodles. Garnish with sliced green onions and sesame seeds for an authentic touch.

Recipe Details

Prep Time: 10 minutes
Cook Time: 4–5 hours (low) or 2–3 hours (high)
Total Time: 4–5 hours 10 minutes
Servings: 4
Difficulty Level: Easy

Variations & Substitutions

• Protein Swap: Try chicken, pork, or tofu for a different protein option.
• Spice Level: Increase red pepper flakes or add Sriracha for a spicier kick.
• Gluten-Free: Use tamari instead of soy sauce.
• Vegetables: Add broccoli, bell peppers, or snap peas in the last 30–45 minutes of cooking for added color and nutrition.

Serving Suggestions