Then, add diced tomatoes, 2 tbs ketchup, ½ cup water, 1 teaspoon sugar, ½ teaspoon salt, and ½ teaspoon chicken bouillon. Mix well and cover for 2-3 minutes until tomatoes are soft. Add sliced chicken back in and cook for one minute. Add ½ teaspoon sesame oil at the end and set aside in another bowl. Optional - add cornstarch slurry for a thicker tomato sauce!
¼ white onion, 3 garlic cloves, 2 large tomatoes, ½ cup water, 2 tablespoon ketchup, 1 teaspoon sugar, ½ teaspoon salt, ½ teaspoon chicken bouillon