Creamy spaghetti served at baptism celebrations is a beloved Mexican party side. This vegetarian, family-friendly dish is a fresh, comforting, crowd-pleasing option for gatherings.
Bring a large pot of salted water to a rolling boil. Add the spaghetti and cook for 8-9 minutes until just al dente, then drain and set aside—do not overcook.
While the pasta cooks, melt butter in a large saucepan over medium-low heat. Add the diced onion and sauté for 5 minutes until soft and fragrant, avoiding any browning.
In a blender, combine Mexican crema, evaporated milk, cream cheese, sautéed onions, salt, and black pepper. Blend until completely smooth and creamy.
Return the drained pasta to the large pot, pour the blended cream sauce over, and set the pot over low heat. Toss gently so each strand is coated and warm through for about 3-5 minutes. Do not boil the sauce; gentle heat only.
Taste and adjust salt and pepper as needed. Serve immediately, garnished with extra pepper or fresh herbs if desired.