Steps
1. Cook spaghetti according to package instructions until al dente. Drain and set aside.
2. In a large skillet, heat olive oil and margarine over medium heat until melted.
3. Add minced garlic and sauté for 1 minute until fragrant.
4. Add shrimp, season with salt, pepper, and chili flakes if using, sauté until pink and cooked through, about 3-4 minutes.
5. Toss cooked spaghetti into the skillet with shrimp and garlic butter. Mix well to coat pasta.
6. Remove from heat, sprinkle with fresh parsley, and serve hot.