Beef In Hot Garlic Sauce - cooking recipe

Ingredients

1/2 lb beef sirloin, sliced in thin strips
1 (10 ounce) bag Baby Spinach (or 2 bunches, cleaned and trimmed)
1 teaspoon vegetable oil
1/2 teaspoon dark sesame oil
4 garlic cloves, minced finely
1 tablespoon nam pla or 1 tablespoon soy sauce
1/2 teaspoon crushed hot chili flakes (or to taste)
1/2 teaspoon sugar
1 teaspoon cornstarch (optional)

Preparation

Heat a skillet or wok over medium-high until quite hot. Pour in the oils, then add the garlic. Stir for a few seconds, until the garlic softens slightly and starts to become fragrant.
Add the beef strips and stir until the meat loses the redness and is showing only a bit of pink in the center of the strips, 1-2 minutes.
Add the spinach, and toss to begin wilting the leaves.
Add the nam pla, chiles and sugar. Stir to combine and cook down the spinach, about 2 minutes.
If there is more thin sauce than you like, combine the cornstarch with a small amount of water and stir some in to the sauce, allow to boil and thicken. Sometimes I get more or less sauce, depends how much moisture is in the spinach and the meat.
Remove from heat.