How to Make It
Process the garlic to a paste in a food processor. Add the hearts of palm and process to a course purée. With the machine on, add the oil in a thin stream until you see the mixture coming together as a velvety purée. The absorbency of palm hearts can vary; any one batch may absorb a bit less or more than 1/3 cup of oil.
Transfer the purée to a serving bowl and stir in the scallions. Taste for salt. Serve within a few hours.