Lydia's Coconut Curry

2 chicken breasts, cut into 1/2 inch chunks
Splash of cooking wine
Salt and pepper, to taste
1 1/2 tablespoons vegetable oil
2 tablespoons curry
1 onion, thinly sliced
2-3 cloves garlic, chopped
2 cups peeled, cubed potatoes and/or carrots (1 inch chunks)
1 (14 oz.) can coconut milk
1 (14.5 oz) can diced tomatoes
1 (8 oz) can tomato sauce (optional)
Sugar and salt, to taste

1. Season chicken pieces with cooking wine, salt, and pepper. 
2. Heat oil and curry powder in large pot. Be careful to not burn the curry! Add more oil if necessary, to prevent burning. Add onions and garlic, and cook until onions are translucent. 
3. Add chicken, stirring chicken to coat each piece with curry oil. Cook until chicken is white on the outside. 
4. Add potatoes and carrots, coconut milk, diced tomatoes with juice, and tomato sauce (if using) to pot. Stir to combine. Partially cover pot and simmer on medium heat, stir occasionally (especially if using stainless steel pot), for 45-60 minutes, or until curry thickens. Add sugar and salt, to taste.