Bring a large pot of water with a pinch of salt to a boil on the stovetop. Cook chickpea pasta for around 6 minutes or until al dente. Reserve around 3/4 cup of pasta water before draining.
While the pasta is cooking, heat olive oil in a frying pan over medium-high. Once hot, add in diced onions and peeled garlic cloves. Cook for 3-4 minutes until onions are softened.
Add cooked onions and garlic to a food processor along with silken tofu, nutritional yeast, lemon juice, and a generous shake of salt and black pepper.
Pour in 1/2 cup of the reserved pasta water and blend until smooth. Then add the last 1/4 cup of the pasta water and blend again.
Pour the sauce into a large saucepan and warm over medium-low heat. Add more salt and black pepper to taste.
Toss in the cooked drained chickpea pasta and stir until evenly distributed. Ready serve with more black pepper if desired!