This is my chili recipe (and I know some of the ingredients are hotly controversial topics of dispute...
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)
Olive oil or veg oil (not a lot - enough to keep it from sticking)
1-2 chopped onions
3-4 smashed garlic cloves
2 chopped (bell/sweet) peppers
Chopped hot chilis (as many as you like)
1 pound beef mince
I fry all that up together in a skillet, throwing in some salt & pepper. When the veggies are tender and the meat is browned, I add:
2-3 tins of beans (pinto beans or kidney beans)
2 tins of tomatoes -- either chopped or squashed up
Hot chili powder to taste (don't be shy with it! Go ahead & dump some in there like you mean it!)
Cumin to taste -- my rule of thumb is roughly (by eyeballing) only a third as much cumin as chili powder
Sometimes a dash of cayenne or hot pepper sauce
Let it simmer a good long while (maybe an hour?) until it thickens up.
When I say hotly disputed ingredients, I'm talking the sweet/bell peppers, the beans and the tomatoes. You could leave all those out -- adding a little water or maybe beef stock to the mixture & end up with a pure beef chili. You might not need to let that simmer as long.