Place the chickpeas, 2 tablespoons of the reserved liquid, the tahini, garlic, lemon juice, Tabasco, and salt in the bowl of a food processor fitted with the steel blade and process until coarsely pureed. The hummus should be moist and thick; add more lemon juice or reserved chickpea liquid to thin, if necessary. Cover and refrigerate for several hours for the flavors to blend. Taste for seasonings. Place the hummus in a serving bowl and drizzle Sriracha over the top. Sprinkle with the pine nuts and a drizzle of olive oil.