Peel, wash, and cut the potatoes into equal cubes about 1 cm thick. Soak potatoes in cold water for 20 minutes. Then remove the potatoes and pat dry with a paper towel.
Pour vegetable oil into a narrow saucepan and heat to 180 degrees. Dip a small number of potatoes into it and fry until golden brown, about 5 minutes. Remove the potatoes from the oil and place them on a paper towel so that the glass will have excess oil and salt. Fry all the potatoes this way. Leave the oil to heat up over the fire.
Pour flour, starch, and salt into a bowl. Stir until smooth.
Pour beer into a bowl and stir.
Squeeze juice (10 ml) from half a lemon and add to the flour mixture, stir.
Add the egg and stir the batter until smooth.
Squeeze the juice (10 ml) from the second half of the lemon and pour over the fish.
Sprinkle the fish with dried dill.
Dip each piece of fish into batter and roll on all sides of the fish.
Dip the battered fish in deep fat one at a time and fry until golden brown. This will take about 3-4 minutes. Remove fish from deep fat and place on a paper towel to remove excess oil. Fish and Chips, or Crispy Fried Fish with Deep Fried Potatoes, is ready.
Serve deep-fried potatoes and fish with your favorite sauce.