Halacha: What Blessing Do You Say on an Egg?

On the egg, one recites 'Shehakol' (the first blessing)

After eating, one recites 'Borei Nefashot' (the concluding blessing)

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The portion size required to obligate a concluding blessing (from "Daily Halacha" based on the rulings of the late Rabbi Ovadia Yosef, zt"l):

For anything a person eats, a "first blessing" must be recited, such as "Shehakol" or "Ha'etz." Even if one eats only a small amount of that food, a blessing is still required if it is being consumed for eating. (However, if one only tastes the food to adjust seasoning or similar purposes, no blessing is recited). Therefore, someone chewing flavored gum, even without swallowing much of it, must still bless for enjoying the taste of the gum. Similarly, one must bless on a drink, even if consuming just a single drop of it.

However, this pertains specifically to the first blessing. The final blessing is recited only when one has consumed a "significant amount." The amount considered significant is "a k'zayit," which is twenty-seven grams, and for drinks, "a revi'it," which is eighty-one grams.

Furthermore, the eating or drinking must occur within a time frame that allows the portions to be combined. For instance, if a person eats a k'zayit of bread throughout the day, piece by piece, blessing "Birkat Hamazon" afterwards is not applicable. Instead, the k'zayit must be consumed within the time frame of "Achilat Pras", with debates among authorities about the exact duration—some say it's five minutes, while others say seven and a half minutes (and there are additional views). Therefore, it's prudent to always consume a k'zayit, especially during Shabbat meals, within four and a half minutes to satisfy all opinions.

Regarding a concluding blessing for a drink, one must consume a revi'it (eighty-one grams) in one go. If there are pauses between sips, no concluding blessing is recited. For this reason, someone eating soup with a spoon does not recite a concluding blessing on that broth, as the volume of a revi'it was not consumed in one go. Similarly, those drinking hot coffee or tea do not recite a concluding blessing, as they cannot drink it all at once.