In a mixing bowl, combine chili powder, paprika, salt, and black pepper. Coat the chicken with the mixture and marinate for 15 minutes.

Heat vegetable oil in a skillet over medium-high heat. Sear the marinated chicken for 5-7 minutes on each side until cooked through. Let rest before slicing into strips.

In the same skillet, reduce heat to medium and melt butter. Add minced garlic and sauté for 1-2 minutes. Pour in heavy cream and simmer for 3-5 minutes until thickened. Set aside.

Bring water to a boil in a pot. Cook ramen noodles according to package instructions, typically 3-4 minutes. Drain and rinse briefly under cold water.

In a pot, heat sesame oil and sauté minced garlic for 1 minute. Add chicken broth and soy sauce, simmer for 5-7 minutes. Stir in heavy cream.

Divide noodles in bowls, pour broth over top, arrange chicken slices, drizzle with garlic sauce, and garnish with green onions and chili oil.