Lemon Cooler Cookies - Pizzazzerie

Ingredients

• 3/4 cup butter
• 3/4 cup granulated sugar
• 1/4 cup powdered sugar
• 1 large egg
• 1 tbsp lemon juice
• 2 tsp lemon zest
• 1/2 tsp vanilla extract
• 2 cups cake flour
• 1/2 tsp baking powder
• 3/4 cup powdered sugar
• 1/2 teaspoon powdered lemonade drinking mix (such as Kool-Aid or True Lemon )