Prophet (SAW)'s Prayers When eating new fruit of the season

Recite:

اللَّهُمَّ بَارِكْ لَنَا فِي ثَمَرِنَا وَبَارِكْ لَنَا فِي مَدِينَتِنَا وَبَارِكْ لَنَا فِي صَاعِنَا وَبَارِكْ لَنَا فِي مُدِّنَا

"O Allah, grant blessings in the fruit and grant blessings in our city and grant blessings in the weighing of our harvest (flour)".

After the dua give the fruit to the youngest child. (Hisnul Hasin)

Alternatively give it to the youngest child in the gathering at that time. (Hisnul Hasin)