【Ingredients】：

Beef

green pepper

yellow pepper

red pepper

onion

【Step】：

1. Thaw the beef at room temperature, soak up the blood with kitchen paper, cut into small squares of about 2-3cm and put in a bowl, add a spoonful of cooking wine, a spoonful of oyster sauce, a spoonful of light soy sauce, a little salt, a little black pepper, and pick it up. System for 30 minutes;

2. Wash the three-color peppers and onions, drain and cut into small cubes;

3. Soak the bamboo skewers with boiling water for a while in advance, then alternately wear the beef cubes and the sliced colored peppers and onions, and then brush the surface with a layer of oil；

4. Put it in the middle layer of the preheated oven, take it out at 200℃ / 390℉ for 10 minutes, brush the sauce again, and continue to bake for 10 minutes.

After taking it out, sprinkle a little cumin powder and chili powder on it, and you are ready to eat!