The fasting person has, at the breaking of the fast, a supplication that is not turned back: 'Three whose supplication is not rejected: the fasting person until he breaks his fast, the just ruler, and the one who is wronged' (at-Tirmidhi).
There is a practical point many get the wrong way round: the answered moment is BEFORE breaking the fast, while still fasting — the last minutes before the Maghrib adhan, not after eating. Spend those minutes supplicating rather than waiting on the food.
The supplication established from the Prophet ﷺ after breaking the fast is: 'The thirst has gone, the veins are moistened, and the reward is confirmed, if Allah wills' (Abu Dawud). It is a remembrance said after, not a supplication said before.
As for 'O Allah, for You I have fasted and upon Your provision I have broken my fast' — its hadith is graded weak by the scholars. Keeping to what is established is safer.