french onion dip

I found this recipe and tried it. and it really tastes like French onion dip. But better than store bought. and its easy, too.

French onion dip:
1 med onion-cut into slices, not too big, not too skinny
1 tablespoon oil
1 tablespoon vinegar, I used red wine
1 teaspoon salt
1/4 teaspoon pepper
1/2 teaspoon soy sauce
1/2 teaspoon thyme
12 oz sour cream- I don't know about this, I just put about 3 spoon fulls in and stirred it around until it looked right

So preheat the oven to 450 degrees
put onions in small casserole dish with oil, vinegar, salt, and pepper, cook about 20 minutes
let onions cool and cut them into pieces.
add rest of ingredients.