Copycat Girl Scout Lemonades

Ingredients

• 1 cup unsalted butter (softened to room temperature)
• 1 cup powdered sugar
• ½ tsp. salt
• 1 large egg room temperature
• 1 tsp. vanilla extract
• ½ tsp. lemon extract
• 2 ¾ cup all-purpose flour (spooned and leveled)
• 2 cups powdered sugar
• 3-4 Tbsp. fresh lemon juice
• 1 tsp. lemon zest
• ½ tsp. vanilla
• Pinch of salt
• drop of gel yellow food coloring