Preheat your oven to 350°F (175°C). In a large mixing bowl, combine the flour, sugar, and butter. Blend until crumbly, then add the egg and vanilla, mixing until a soft dough forms.

Wrap the dough in plastic wrap and place it in the refrigerator for about 30 minutes.

Remove the dough and scoop out tablespoon-sized portions, rolling them into balls. Place on a lined baking sheet, flatten slightly.

Bake in the preheated oven for 10-12 minutes until edges are light golden. Let cool on the baking sheet.

Prepare the cream cheese frosting by beating together the cream cheese and powdered sugar until smooth.

Frost each cookie and sprinkle with red and blue sprinkles and popping candy.

Arrange the cookies on a platter for serving.