Whisk together the butter and sugar. Whisk in the egg, vanilla extract, almond extract, and butter extract.
Stir in the flour, salt, and baking powder.
Stir in the sprinkles.
Scoop out the dough, roll it into balls, and roll the balls in a mixture of sugar and sprinkles. Arrange the balls on a baking tray.
Bake until the cookies are puffed and light golden, about 11 to 14 minutes at 350F.