Sayyiduna Anas (may Allah be pleased with him) said that he (peace and blessings be upon him) used to break his fast with fresh dates before praying; if there were none, then with dried dates; and if there were none of those either, he would take a few handfuls of water.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8131