Cook the pasta

• Bring a large pot of salted water to a boil.
• Cook the pasta until al dente, then reserve a little cooking water and drain.

Make the cowboy butter

• Melt the butter in a pan over low heat.
• Add the garlic, smoked paprika, cayenne and red pepper flakes and cook gently until fragrant.
• Stir in the Dijon mustard and lemon juice, then take off the heat.

Toss the pasta

• Add the drained pasta to the cowboy butter with a splash of cooking water.
• Toss well so every strand is coated, then fold in the Parmesan, parsley and chives.
• Season with salt and serve hot.