Heat the olive oil in a large saute pan and add the garlic, parsley and anchovy paste. Heat until fragrant and the anchovy paste has melted. Don't burn the garlic! If you like things extra spicy, you can add some crushed red pepper here or if you could find spicy olives, this is where you add the heat! If you are pulling out some sauce early for the non spicy people, omit the the crushed red pepper here.

Next add the crushed tomatoes. Fill your tomato can a 1/3 full of water, swirl it around to catch any tomato left in the can, and add it to the pan. Add salt and pepper. Simmer on medium for 20 minutes.

Here is where you may want to remove some sauce for those who dislike olives or spicy food. If not, add the spicy olives and simmer for an additional five minutes.

Toss with hot spaghetti and serve!