1
Grate the potatoes the usage of a cheese grater or meals processor attachment. Toss them in a easy bowl with the juice of 1 lemon to end browning. Grate the onions. Add 4 cups grated onion to the bowl with the potatoes, tossing to mix (any leftover onion will be saved for one other exhaust).
2
The exhaust of cheesecloth or a kitchen towel, squeeze dry the grated potatoes and onions, discarding any excess liquid. Then switch to a easy bowl, skedaddle within the overwhelmed eggs to coat, and skedaddle within the pastry and rye flours unless evenly mixed. Season with 1 1/2 teaspoons every salt and pepper, or as desired (to examine the mix, fry a little pancake, style and adjust seasoning if wished).
3
In the bowl of a stand mixer, or in a medium bowl, whip the cream and the juice of the closing lemon unless stiff peaks kind, being careful now no longer to over-whip. This makes about 2 cups whipped cream.
4
Heat a easy frying pan with moral ample oil to come support up the sides by roughly one-eighth chase. Heat the oil over medium heat unless hot. Drop roughly one tablespoonful of the potato combination into the oil, gently flattening the mix with the support of the spoon to kind the pancake. The formed pancakes will be about 2 inches in diameter.
5
Cook every of the pancakes unless the first aspect browns, about 3 minutes (time will vary reckoning on the diameter of the pancakes and heat of the oil), then fastidiously flip and put collectively dinner the other aspect unless browned and the interior is soft and cooked, 2 to a pair of minutes. Adjust the heat of the oil if wished, reducing if the pancakes brown too rapidly sooner than they’re fully cooked, and rising if the pancakes are taking too prolonged to manufacture. Role the pancakes on paper towels to empty for 2 minutes. This makes about 5 dozen pancakes.
6
Over every pancake, place of abode a spoonful or pipe a fine dollop of the whipped lemon cream and high with salmon eggs. Sprinkle over finely sliced chives, and assist straight.