Easy Egg Stir Fry with a Savory and Sour taste

Name: Easy Egg Stir Fry with a Savory and Sour taste
Cuisine: Asian, Chinese
Ingredients: 3-4 large eggs (serving for 1 or 2); 3 tbsp. cooking oil – the best option is some vegetable cooking oil plus animal fat for example lard; 3 Thai peppers (smashed and cut into sections); 6 cloves garlic (peeled and smashed); 3 scallions (, seperate white part and green part); 1/8 teaspoon salt; 1 tbsp. light soy sauce; 1 tbsp. black vinegar; Optional: chopped scallions for garnish