Heat cream in a small saucepan on the stove over low heat.
Rub garlic clove all over the inside of a large serving bowl.
Cook pasta according to package directions in lightly salted water, leaning toward the al dente side. Do not overcook! Drain pasta, then return to the cooking pot. Pour in cream, add butter, and add cheeses and salt and pepper. Stir gently to combine, adding hot pasta water as needed for consistency. Don’t overmix; if there are little clumps of cheese here and there, it’s fine! Taste and add more salt if needed. Mixing stage should happen very quickly.
Turn pasta into large serving bowl. Sprinkle with parsley and serve immediately with a nice medium rare steak.
*Can use whatever four cheeses you’d like!