In another bowl slightly beat egg – beat until yolk and white is just combined.
Add ice to water until the water is chilled.
Remove ice and pour water in the bowl with the beaten egg.
Mix gently together.
Stir in flour, do not over mix there should be lumps in the batter. Use right away, if for some reason you can’t use it immediately place in the refrigerator for a few minutes until you’re ready to fry.
Place 1/8 cup of flour in a dish.
Test the oil temperature by dropping a small bit of batter in oil, if oil bubbles around the batter the oil is ready.
Roll shrimp or vegetable in the dish of flour, shake off excess.
Dip in batter, let excess batter drip off before adding into hot oil.
Place battered shrimp and veggies in hot oil to fry. Do not over crowd the pot, cook in batches if you have to.
Turn as needed to cook all sides. Tempura is done when the shrimp or vegetable starts to float.
Drain on rack and set aside.
Mix all ingredients together and set aside until needed
Heat oil in a skillet.
Saute onions in skillet until it starts to go limp and clear
Add in Kamoboko, mushrooms, and green onions (reserve some as garnish if desired)
Cook about 3-4 minutes.
Add in Donburi Sauce and simmer for 1 minute.
Pour beaten egg over all and cook until egg is done.
Divide cooked egg mixture in half and place one half on top of each bowl of rice.
Place 2 Shrimp Tempura & pieces of veggie tempura (if you made some) on top of egg.
Garnish with green onions and seafood flakes if desired.