Slow Cooker Mongolian Beef (Tender Takeout-Style Dinner) - My Home Made Recipe

Ingredients

• 1/4 cup cornstarch.
• 1 tablespoon toasted sesame oil.
• 1 teaspoon finely chopped garlic.
• 1.5 pounds thinly sliced flank steak (against the muscle fibers).
• 1 teaspoon finely chopped ginger.
• 1/3 cup brown sugar.
• 1/2 cup soy sauce.
• 1/2 cup water.
• Optional: 1/2 cup sliced green onions (or as garnish).