2 tablespoons canola, corn or other neutral oil
2 large onions, peeled and sliced
Salt and freshly ground black pepper to taste
2 teaspoons curry powder
1 can unsweetened coconut milk (1 1/2 to 2 cups)
700 grams chicken tenderloins, cut into 3-5cm chunks
1 cup peeled, seeded and diced tomato (canned is fine; cut up and drain before using)
Chopped basil or mint for garnish (optional)
Place oil in a frying pan and turn heat to medium-high. A minute later, add onions along with a generous pinch of salt and some pepper. Cook, stirring occasionally, until onions are very soft and almost falling apart, 15 minutes or more. Stir in curry powder, and cook, stirring, for another minute or so.
Add coconut milk, and cook until it thickens, about two minutes, stirring occasionally. Add chicken, and stir, then cook until done, 3 to 6 minutes. (If you use seafood, keep in mind that it cooks a little faster than chicken; if you are in doubt about whether chicken is done, cut into a piece.)
Add tomato, and cook another minute; adjust seasonings as necessary. Serve over rice, garnished with basil or mint, if desired.