
Boil the spaghetti in well-salted water until al dente. Save 1 cup of pasta water before draining.
While the pasta cooks, pat the shrimp dry and season with salt and pepper. Heat the oil and 1 tbsp butter in a large skillet over medium-high heat.
Cook the shrimp 1-2 minutes per side until pink, then move them to a plate.
Lower the heat to medium, add the remaining butter, minced garlic and pepper flakes, and stir 1 minute until fragrant without browning.
Add the drained pasta, the juice of the lemon and about 1/2 cup pasta water. Toss until silky, adding more water if it looks dry.
Return the shrimp, toss in the Parmesan and chopped parsley, and serve. Skip the pepper flakes for little ones and add them at the table.
Photo: DinnerDrop