Spicy Pork Chorizo Noodles with Kale and Egg

Name: Spicy Pork Chorizo Noodles with Kale and Egg
Cuisine: Asian, Chinese
Ingredients: 1/2 tbsp. olive oil; 1/2 tbsp. butter; 1/2 lb. ground pork; 1/2 lb. chorizo; 1/2 cup white onion, diced; 2 cloves garlic, minced; 1/2 tsp. paprika; 1/2 tsp. ancho chile powder; 1/2 tsp. salt; 1 tbsp. hoisin sauce; 1 tbsp. tomato paste; 1 tbsp. gochujang; 1 tbsp. soy sauce; 1/2 cup chicken stock; 1 lb. Shanghai-style noodles (also called pancit miki noodles. Or substitute Japanese udon noodles); 1 cup kale, thinly sliced; 2-3 egg yolks, raw; 1/4 cup scallions, thinly sliced; Sesame seeds, for garnish