Combine chicken and corn starch in a bowl. Toss to coat

Heat oil in a large non stick pan. Add chicken and stir fry for 5 to 8 minutes or till it get pinkish. Add soy sauce, vinegar and sugar.

Remove from heat. Take out from pan. Add red pepper, ginger, garlic into same pan simmer for 5 minutes. Now add chicken. Stir until chicken mix with spices

Add peanuts and vegetables stir for 5 minutes heat thoroughly and stir occasionally.