Peel the shrimp, but leave the tail on. Heat the oil up in a deep skillet or pot until it reaches 350°F.
Combine corn starch with salt. Toss the shrimp in cornstarch and salt.
In a medium bowl, whisk the egg with water. Next, whisk in the flour until the batter is light and fluffy.
Dip the shrimps into the batter and place into the skillet and fry until lightly golden brown. Note: only fry a handful a time so they cook evenly and don't stick.
Remove the shrimp from the oil and place on a paper towel to drain the tempura shrimp of any excess grease. Enjoy alongside your favorite dipping sauce!