01 - Preheat oven to 350°F. Grease an 8-inch round or square baking dish, optionally lining with parchment paper for easy removal.
02 - Combine cottage cheese, Greek yogurt, sugar, lemon zest, lemon juice, vanilla, and salt in a large bowl. Mix until smooth, using an immersion blender for a creamier texture.
03 - Add eggs one at a time, mixing thoroughly after each addition until fully incorporated.
04 - Sprinkle cornstarch over the mixture and stir until completely dissolved and no lumps remain.
05 - Gently fold in fresh raspberries, taking care not to crush them to maintain their shape.
06 - Pour batter into the prepared dish and smooth the top with a spatula for even baking.
07 - Bake for 38 to 42 minutes until the center is set and edges are lightly golden brown.
08 - Let cool to room temperature, then refrigerate for at least 2 hours to set completely before slicing.
09 - Serve chilled or at room temperature, garnished with additional fresh raspberries and a dusting of powdered sugar if desired.