INGREDIENTS
1/2 cup
unsalted butter, softened to room temperature
3/4 cup
granulated sugar
1
large egg + 1 egg yolk1
2 tsp
vanilla extract
1
and 1/2 cups (190g) all-purpose flour (spoon & leveled)
1/4 tsp
salt
1 tsp
baking powder
1/2 tsp
baking soda
1
and 1/2 teaspoons cornstarch
2/3 cup
white chocolate chips
1/2 cup
rainbow sprinkles (not nonpareils)2
1/2 cup
unsalted butter, softened to room temperature
1
and 3/4 cups (150g) confectioners' sugar
2 tbsp
heavy cream or half-and-half3
1 tsp
vanilla extract
1/4 tsp
almond extract4
salt,
extra sprinkles for decorating on top