Prepare the Cowboy Butter: In a medium mixing bowl, combine the softened unsalted butter with chopped chives, parsley, lemon zest, garlic powder, onion powder, and a pinch of salt. Mix thoroughly until all ingredients are well blended. Place the mixture onto a sheet of parchment paper, roll it into a log shape, and refrigerate for at least 30 minutes or until firm to the touch.
Cook the Linguine: Fill a large pot with water and add a generous amount of salt. Bring the water to a rolling boil. Add the linguine and cook according to the package instructions until it reaches an al dente texture. Once cooked, drain the pasta, reserving ½ cup of the pasta water for later use. Set the drained linguine aside.
Cook the Chicken: In a large skillet, heat 2 tablespoons of the prepared cowboy butter over medium-high heat. Once melted, add the diced chicken pieces to the skillet. Season the chicken with smoked paprika, cayenne pepper, salt, and freshly ground black pepper. Sauté the chicken for approximately 7-10 minutes, or until it becomes golden brown and reaches an internal temperature of 165°F (75°C).
Add Garlic and Tomatoes: Once the chicken is cooked, reduce the skillet heat to medium. Add the minced garlic to the skillet and sauté for about 1 minute, until fragrant. Incorporate the halved cherry tomatoes and continue cooking until they soften, approximately 3-5 minutes.
Incorporate Cream and Spinach: Slowly pour in the heavy cream, stirring to ensure it is evenly distributed. Add the chopped spinach and let the mixture simmer for 2-3 minutes, or until the spinach is wilted. Taste the sauce and adjust the seasoning with additional salt and pepper if desired.
Combine Pasta and Sauce: Add the cooked linguine to the skillet along with the reserved pasta water and the remaining cowboy butter. Toss all ingredients together gently but thoroughly until the pasta is well-coated in the sauce and heated through.
Serve: Plate generous portions of the linguine and chicken mixture. Garnish with freshly chopped parsley for a vibrant finish.
Notes
For an eye-catching presentation, serve in shallow bowls and finish with a squeeze of fresh lemon juice.