In a large mixing bowl, whisk together eggs and sugar until well blended.
Mix in ricotta cheese, buttermilk and salt and whisk until blended.
In a separate bowl, sift together flour and baking powder then whisk the flour mixture into the cheese mixture.
Stir in the zest of 1 lemon. If you let the batter rest for 10-30 minutes, the pancakes will be even fluffier.
Heat a large non-stick skillet or griddle over medium heat and melt in your oil. Spoon batter into the pan (about 2 Tbsp per pancake) and sautee 2-3 min per side. Repeat with remaining batter, adding more oil as needed.