To prepare crepes, in a medium bowl, combine the eggs, sugar, milk, and potato starch. Heat oil or cooking spray in a skillet over medium heat.

When oil is hot, ladle batter onto skillet and shift pan to cover the entire bottom with batter. Fry until the edges of the crepe start looking crisp and/or golden. Flip crepe onto a prepared pan or parchment paper. Continue until the entire batter is finished. Allow to cool.

Meanwhile, in a small bowl, combine the farmer cheese, egg, and sugar. Spread crepe with a thin layer of Chocolate Spread, if desired. Spoon cheese mixture in a row onto the uncooked side of the crepe, towards the bottom-center. Fold over sides and roll up. Lay down on open seam end.

Heat a frying pan with a thin layer of oil. Place blintzes seam end down and cook about 4 minutes per side until golden.