Preheat oven to 350 degrees and line a 9x13 baking dish with parchment paper
Using a standing mixer, cream together the butter and sugar until fluffy
Beat in the eggs and vanilla
In a large mixing bowl, whisk together the flour, salt, and baking soda
Gradually mix in to the wet ingredients
Fold in one container of sprinkles into the dough
Scoop dough into the prepared baking dish and lightly flatten with your hands
Place into the oven and bake for 20-30 minutes or until lightly golden brown
Remove from oven and allow to cool completely