Copycat PF Chang's Mongolian Beef

My goal for 2014 is to try at least 1 new recipe per week, I came across this recipe on Pinterest and in my quest to try new things thought it would be a good step --- I mean, who doesn't love PF Changs?!

yield:6 servings

ingredients
2 lb top sirloin
1/2 C cornstarch
1/2 C vegetable oil

for sauce
2 tbs sesame oil
1 C soy sauce
1 C brown sugar
4 cloves garlic, minced
1 C water
3 green onions, diced

directions

1. Slice the steak into small thin pieces against the grain.
2. Combine the beef and cornstarch in a gallon size ziploc bag.
3. Close the bag and shake really well until each piece of meat is coated with cornstarch; refrigerate until ready to use.
4. In a small sauce pan, add oil, soy sauce, brown sugar, garlic, and water.
5. Stir and cook over medium heat, about 30 minutes, until the sauce thickens and reduces; set aside.
6. In a large skillet, heat the oil.
7. When the oil is hot (the surface will look ripply), add beef and cook until browned. (Doing this in two batches is probably best to avoid uneven cooking - add more oil for second batch if you need it).
8. Drain any excess oil from the skillet.
9. Pour sauce over the beef in the skillet; stir and cook for 5 more minutes.
10. Top with green onions and serve over rice.
11. Enjoy!