Slow Cooker Mongolian Flank Steak
This Slow Cooker Mongolian Flank Steak is a savory-sweet, tender beef dish simmered in a rich soy-garlic sauce. It's an easy, set-it-and-forget-it meal that delivers takeout-style flavor with minimal effort. Perfect over rice or noodles for a comforting dinner.
Ingredients
- 1.5 lbs flank steak
- ¼ cup cornstarch
- 2 Tbsp sesame oil
- ½ tsp garlic powder
- ½ cup soy sauce
- ¾ cup brown sugar
- 1 onion diced
- ¼ tsp red pepper flakes
Instructions
- In a bowl, whisk all ingredients except the steak until smooth.
- Add flank steak to slow cooker. Pour sauce over it.
- Cook on LOW 6–8 hours or HIGH 3–4 hours.
- Remove steak, slice or shred, return to sauce.
- Serve hot over rice. Garnish as desired.
- See full steps with tips & photos → https://mischacrossing.com/slow-cooker-mongolian-flank-steak/
Notes
- For a spicier kick, increase the red pepper flakes or add a splash of sriracha.
- Using low-sodium soy sauce helps balance the sweetness and saltiness.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
- This dish pairs well with steamed vegetables like broccoli or bok choy for a complete meal.