Remove the zucchini (2 medium) ends and spiralize. Your noodles will be really long, I like to chop them a little so I don't get super long pieces. Discard the interior and end pieces.
In a large pan, melt the butter (2 tablespoons) over medium heat. Add the garlic (2 cloves) and saute until it's fragrant, about 1 minute.
Add the zucchini noodles, salt (1/2 teaspoon), and pepper (1/4 teaspoon), and toss to coat. Cook for about 1 minute, only to warm through the noodles, cooking them longer will make them soggy. Turn off the heat and sprinkle the parmesan (1/3 cup) on top, then toss to combine.
Serve warm with crushed red pepper flakes, additional parmesan, and basil. Enjoy!