01 -
In a large mixing bowl, whisk together instant lemon pudding mix and cold whole milk until smooth.
02 -
Gently fold in the thawed whipped topping into the pudding mixture to create a light and creamy texture.
03 -
Arrange a single layer of graham crackers at the bottom of a 9×13-inch baking dish, trimming as needed to fit.
04 -
Spread half of the pudding mixture evenly over the graham cracker layer using a rubber spatula.
05 -
Add another single layer of graham crackers on top of the pudding.
06 -
Spread the remaining pudding mixture over the second layer of graham crackers.
07 -
Top with a final layer of graham crackers, ensuring full coverage.
08 -
Let the lemon frosting sit at room temperature for 10–15 minutes, then spread evenly over the top layer of graham crackers.
09 -
Cover the dish and refrigerate for at least 4 hours, preferably overnight, to allow the layers to set and soften.