Cook the Linguine: Bring a large pot of salted water to a rolling boil. Add the linguine and cook according to package instructions until al dente. Once done, drain the pasta, retaining about 1 cup of the pasta water, and set aside.
Prepare the Shrimp: While the pasta is cooking, take the shrimp and pat them dry with paper towels. Season them generously with salt and freshly ground black pepper to enhance their flavor.
Sauté the Garlic: In a large skillet, heat 2 tablespoons of butter over medium heat. Once melted, add the minced garlic and red pepper flakes. Cook for about 1 minute, stirring frequently, until the garlic is fragrant but not browned.
Cook the Shrimp: Increase the heat slightly and add the seasoned shrimp to the skillet. Sauté for about 2-3 minutes without moving them until the shrimp are pink on one side. Flip the shrimp, then add the lemon juice and zest. Cook for an additional 2-3 minutes, or until the shrimp are fully opaque and cooked through. Remove the shrimp from the skillet and keep them warm on a plate.
Make the Sauce: In the same skillet, pour in the chicken broth and bring it to a gentle simmer. Let it reduce slightly for about 2 minutes. Gradually stir in the remaining 2 tablespoons of butter until melted and fully incorporated into the broth, creating a smooth sauce.
Combine Pasta and Shrimp: Add the drained linguine to the skillet with the garlic butter sauce, tossing everything together to ensure the pasta is well-coated. If the mixture appears dry, add the reserved pasta water a little at a time until you achieve your desired creaminess. Fold in the cooked shrimp and half of the chopped parsley for color and flavor.
Serve: Dish out the shrimp linguine into individual bowls, garnishing with the remaining parsley and a sprinkle of grated Parmesan cheese if desired.
Notes
Enhance the dish's appeal by serving with lemon wedges on the side and a light sprinkle of additional parsley for freshness.