INGREDIENTS
1/2 cup
unsalted butter, softened (1 stick)
1/2 cup
granulated sugar
1/2 cup
light brown sugar, packed
1
large egg
2 tbsp
cream or half-and-half
1 1/2 tsp
vanilla extract (I use clear imitation-vanilla extract)
1 3/4 cups
all-purpose flour
2 tsp
cornstarch
1 tsp
baking soda
1/4 tsp
salt, or to taste
3/4 cup
red, green, and white jimmies (sprinkles), plus more for sprinkling the tops of the cookies