Let cream cheese and sour cream come to room temperature.
This is important for a smooth cheesecake.
Combine graham crackers, melted butter, and 2 teaspoon sugar in a food processor. Pulse until the mixture resembles wet sand. Press it into the prepared loaf pan.
Wipe out the food processor and then combine cream cheese, sour cream, ½ cup sugar, and vanilla in the empty food processor. Blend until very smooth. Scrape down the sides. Add eggs and blend just until smooth.