What exactly do you mean by "exactly." I believe in following recipes very closely the first time
through, to give them a chance, but if it says to saute onions and garlic together, I always cook the onions first and add the garlic at the end so it doesn't burn. Speaking of garlic, if it is raw in a sauce, like aioli or Caesar dressing, I always puree it with salt by hand first before adding it to the processor no matter what the recipe says.
I always blanch spinach or other greens in a big pot of water even it the recipe says to add them to the skillet to steam in their own moisture.
If a recipe says to cook dry sugar into caramel I add water and do it the long way so I don't burn it.
Basically, I guess I make the recipes longer by using techniques I'm comfortable with. But I respect the ingredients and proportions of the original the first go-round.