Sweet Potato-Ginger Cookie Ice Cream Sandwiches

Ingredients

• 12 ounces sweet potatoes
• 3 tablespoons unsalted butter
• 3/4 teaspoon ground cinnamon
• 1/4 teaspoon ground cloves
• 1/2 teaspoon fine sea salt
• 2 cups whole milk
• 1 1/2 cups heavy cream
• 2/3 cup sugar
• 3 cups all-purpose flour
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon ground ginger
• 1/4 teaspoon freshly grated nutmeg
• 1 cup unsalted butter
• 1 1/2 cups sugar
• 1/3 cup molasses
• 3 eggs
• 1 teaspoon pure vanilla extract