01 -
Cook linguine in a large pot of salted boiling water according to package instructions until al dente. Drain and set aside.
02 -
Heat 1 tablespoon of butter in a skillet over medium-high heat. Season both sides of the sirloin steak with salt and black pepper. Sear the steak for 3 to 4 minutes per side for medium-rare. Remove from pan, let rest for several minutes, then slice thinly against the grain.
03 -
In the same skillet, add the remaining 1 tablespoon butter. Add minced garlic and sauté for 1 minute until aromatic.
04 -
Pour heavy cream into the skillet with garlic. Add grated Parmesan, black pepper, and red pepper flakes. Stir continuously, allowing the sauce to simmer for 2 to 3 minutes until it slightly thickens.
05 -
Add the drained linguine to the skillet and toss to thoroughly coat the noodles in the creamy sauce.
06 -
Plate the linguine, arrange the sliced steak on top, and serve immediately while warm.