01 -
Bring a large pot of well-salted water to a rolling boil. Add the penne and cook until just tender with a slight bite, following the package timing instructions.
02 -
When your pasta has about 10 minutes left to cook, warm the butter in a large skillet over medium-high heat. Once it's completely melted and starting to foam, dust in the flour and cook for roughly a minute, stirring frequently to prevent burning.
03 -
Stir in the minced garlic, then immediately pour in the wine and lemon juice. Let the mixture bubble vigorously until the liquid reduces by about half - this should take 30 seconds to a minute.
04 -
Slowly whisk in the heavy cream, making sure the flour completely dissolves without any lumps. Add the Italian seasoning and let the sauce simmer gently for several minutes until it coats the back of a spoon nicely.
05 -
Remove the pan from heat and fold in the Parmesan cheese. Taste and season generously with salt and pepper - don't be shy here. Drain the pasta (save a bit of the starchy water) and toss everything together in the skillet, adding a splash of pasta water if the sauce seems too thick.
06 -
Transfer to serving bowls immediately and top with extra Parmesan and a sprinkle of fresh parsley if you like. This is best enjoyed right away while it's hot and creamy.