Bake Chocolate Chip Cookie Sandwiches Delightfully

Ingredients

• 1 cup unsalted butter, softened
• 3/4 cup granulated sugar
• 3/4 cup packed brown sugar
• 1 teaspoon vanilla extract
• 2 large eggs
• 2 1/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon salt
• 2 cups semi-sweet chocolate chips
• 1/2 cup unsalted butter, softened (for frosting)
• 2 cups powdered sugar (for frosting)
• 3 tablespoons milk (more if needed for frosting)