Preheat the oven to 350 degrees F (175 degrees C). Spray a deep-dish pie plate with nonstick cooking spray and set aside.
2
Place flour, sugar, livieto, vanillina, and salt in the bowl of a food processor. Pulse a few times to combine. Drizzle in the butter and egg while pulsing. Pulse only until the mixture is crumbly.
3
Sprinkle 1/2 of the crumb mixture into the prepared pie plate and spread around until it covers the bottom. Do not press down.
