The Messenger of Allah ﷺ used to break his fast before praying with some fresh dates; but if there were no fresh dates, he had a few dry dates, and if there were no dry dates, he took some mouthfuls of water. (Using translation from Abū Dāʾūd 2356)
كَانَ رَسُولُ اللهِ ﷺ يُفْطِرُ عَلَى رُطَبَاتٍ قَبْلَ أَنْ يُصَلِّيَ فَإِنْ لَمْ يَكُنْ رُطَبَاتٌ فَتَمَرَاتٌ فَإِنْ لَمْ يَكُنْ تَمَرَاتٌ حَسَا حَسَوَاتٍ مِنْ مَاءٍ