Bring a large pot of water to a rolling boil, then generously salt it until it tastes like seawater.
Add the squid ink to the boiling water, stirring vigorously to distribute evenly. Watch as the water transforms into a deep, inky black.
Carefully add the pasta to the ink-infused water, stirring immediately to prevent sticking and ensure even coloring.
Cook the pasta according to package instructions, usually 9-11 minutes, stirring occasionally. The water will stay dark and fragrant as the pasta absorbs the ink.
While the pasta cooks, heat the olive oil in a wide skillet over medium heat, listening for a gentle sizzle as it warms.
Add the minced garlic to the skillet, cooking for about 30 seconds until fragrant and slightly golden, filling the air with a savory aroma.
Once the pasta is al dente, use tongs to transfer it directly from the ink water into the skillet, allowing some cooking water to come along to help loosen the sauce.
Toss the pasta in the garlic and oil mixture, stirring gently to coat each strand evenly and create a glossy, flavorful surface.
If the sauce seems too thick, add a splash of reserved pasta water to loosen it and help it cling better to the noodles.
Finish by sprinkling lemon zest over the pasta for a burst of citrus brightness, balancing the salty, oceanic flavors.
Serve the squid ink pasta immediately, garnished with extra lemon zest if desired, and enjoy its striking appearance and complex flavor.