Preheat oven to 350 F. Line two muffin pans with paper liners.
In a bowl, combine the flour, baking powder and salt. Set aside.
In a large bowl, cream the butter and sugar together until fluffy. Add in one egg at a time, beating after each addition and then mix in the vanilla. Gradually mix in the flour mixture, alternating with the milk.
Scoop the batter into each baking cup until ¾ full.
Bake for 18 minutes, or until done. Allow to cool for 5 minutes and remove from the pan onto a wired rack.
Gender Reveal Filling Frosting
In a large bowl, cream the butter.
Gradually beat in the powdered sugar alternately with the milk and vanilla extract.
Add in pink or blue coloring and beat until fluffy.
Core each cooled cupcake and fill with colored frosting.
Buttercream Frosting
In a large bowl, cream the butter.
Gradually beat in the powdered sugar alternately with the milk and vanilla extract.
Beat until fluffy.
Pipe or spread frosting onto each cupcake.
Decoration
Place sprinkles on top of each frosted cupcake.
Recipe by Sugar, Spice and Family Life at https://sugarspiceandfamilylife.com/2017/08/gender-reveal-vanilla-cupcakes-recipe.html