INGREDIENTS
1
and 2/3 cups all-purpose flour
1/2 tsp
baking powder
1/4 tsp
baking soda
1/2 tsp
salt
1/2 cup
unsalted butter, melted
1 cup
granulated sugar
1
large egg
1/4 cup
yogurt (plain or vanilla; or greek yogurt; or sour cream)
3/4 cup
milk (cow's milk; or soy milk; or almond milk)
2 tsp
vanilla extract
1/2 cup
rainbow jimmies/sprinkles (not nonpareils)
3/4 cup
unsalted butter, softened to room temperature
3 cups
confectioners' sugar
1/4 cup
heavy cream or half-and-half*
2 tsp
vanilla extract
salt,