Dan Dan Noodles

8 ounces spaghetti or Chinese wheat noodles
1 tablespoon vegetable oil
1/2 pound ground pork
2 cloves garlic, minced
1 tablespoon ginger, minced
2 green onions, chopped
1/4 cup soy sauce
2 tablespoons Chinese black vinegar or rice vinegar
2 tablespoons spicy chili oil
1 tablespoon tahini or Chinese sesame paste
1 tablespoon sugar
1/2 cup chicken broth
1/4 cup chopped peanuts
Handful of fresh cilantro, chopped