Whisk the ricotta cheese, milk, eggs, sugar, lemon zest, lemon juice, and vanilla together in a large bowl.
1 cup whole-milk ricotta cheese, 1 cup whole milk, 2 large eggs, 1/4 cup granulated sugar, 1 Tablespoon grated lemon zest, 2 Tablespoons freshly squeezed lemon juice, 1 teaspoon vanilla
Add the flour, baking powder, and salt. Stir just until combined. Batter will be lumpy. Let the batter rest for 5 minutes.
1 1/2 cups all-purpose flour, 1 Tablespoon baking powder, 1/2 teaspoon salt
Heat a griddle or large pan over medium heat. Melt 1 tablespoon of the butter on the griddle. Use a 1/3 cup measuring cup to pour the batter onto the hot griddle to make the pancakes.
2 Tablespoons salted butter
Cook pancakes until edges are set and bubbles appear at the surface of the pancake (2-3 minutes), then flip with a spatula and cook until the other side is golden brown and the pancake is cooked through (another 2-3 minutes).
Remove pancakes from griddle and serve immediately, dusting with powdered sugar, or keep them warm in a preheated oven while cooking the remaining pancake batter.
Powdered sugar