in a large, heavy-bottomed pot add oil over medium-high heat. When oil heats add chicken and brown about 7 minutes per side. remove chicken, set aside.
Add boiling water to the same pan and add in peppers, carrots and onion. Return to boil and then reduce heat to low for about 5 minutes until vegetable are soft.
Return chicken to the pot, along with thyme, salt and pepper. As this begins to stew together, you can add your teriyaki and tomato paste. (if you want a darker color you can add the caramel coloring). Cover and simmer over low heat for 1 hour.