Funfetti® Pancakes

1 cup all-purpose flour
2 tablespoons white sugar
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 cup buttermilk
1 egg
2 tablespoons butter, melted
1 1/2 teaspoons vanilla extract
1/4 cup sprinkles Sprinkle Sauce:
1 cup confectioners' sugar
1/3 cup heavy whipping cream
1 teaspoon vanilla extract
1/8 teaspoon sea salt
2 tablespoons sprinkles cooking spray

Whisk flour, sugar, baking powder, baking soda, and salt together in a bowl.
Combine buttermilk, egg, butter, and 1 1/2 teaspoon vanilla extract in a separate bowl.
Beat to break up the egg. Pour over the flour mixture; stir until just combined.
Stir 1/4 cup sprinkles gently into the batter. Allow batter to rest for 5 minutes.
Whisk confectioners' sugar, heavy cream, 1 teaspoon vanilla extract, and salt together in a small bowl until smooth.
Add 2 tablespoons sprinkles.
Heat a large nonstick skillet over medium-low heat; coat with cooking spray.
Drop 1/2 cup batter into the skillet.
Spread with the back of a spoon to about 1/4-inch thick.
Cook until bubbles form and the edges are dry, 2 to 3 minutes then Flip.
Cook until second side is set, 1 to 2 minutes. Transfer to a plate.
Repeat with remaining batter.
Stir sprinkle sauce so sprinkles rise to the top.
Serve pancakes with a generous drizzle of sprinkle sauce.