Preheat oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan.
In a large bowl, whisk together melted butter and sugar until well combined. Beat in eggs one at a time, then stir in vanilla extract.
In a separate bowl, whisk together flour and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
Fold in Easter sprinkles and mini chocolate eggs (if using).
Pour batter into the prepared baking pan and spread evenly.
Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with moist crumbs.
Let cool completely in the pan before cutting into squares. Enjoy!
Notes
For best results, use high-quality sprinkles that won't bleed into the batter. Store blondies in an airtight container at room temperature for up to 3 days.