Soft Lemon Cookies

Ingredients

• 6 tablespoons granulated sugar
• 3 tablespoons lemon zest
• 4.5 cups all-purpose flour (650g)
• 1 teaspoon baking soda (6g)
• 1/2 teaspoon cream of tartar (3g)
• 1/2 teaspoon salt (3g)
• 1 cup margarine, room temperature (226g)
• 2 cups granulated sugar (400g)
• 2 large eggs, room temperature
• 2 tablespoons milk (1 oz)
• 2 tablespoons fresh lemon juice (1 oz)
• 1 teaspoon lemon extract
• 1/2 teaspoon vanilla extrat
• 1/2 small box (0.3 oz) sugar-free lemon gelatin (~4g)
• 1 tablespoon lemon zest
• Yellow food coloring (optional, for extra color)
• 1 cup powdered sugar (120g)
• 2 tablespoons fresh lemon juice (30g)