Spooky Ghost Cookies

Name: Spooky Ghost Cookies
Prep time: 10 min
Total time: 10 min
Cuisine: American
Ingredients: 3 c. all-purpose flour, plus more for surface; 1 tsp. baking powder; 1/2 tsp. kosher salt; 1 c. (2 sticks) butter, softened; 1 c. granulated sugar; 1 large egg; 1 tbsp. milk; 1 tsp. pure vanilla extract; 3 c. powdered sugar; 1/4 c. light corn syrup; 1/4 c. milk, plus more for thinning; 1/4 tsp. almond (or vanilla) extract; Black food coloring