Everything cookie ice cream sandwich

Name: Everything cookie ice cream sandwich
Ingredients: 1 cup all-purpose flour; 2 teaspoons baking soda; 1/2 teaspoon salt; 2 teaspoons finely ground coffee; 1/3 cup crushed original hickory sticks; 1 cup crushed corn flakes; 1/3 cup crushed pretzels; 1/4 cup crushed pecans; 1/3 cup rolled or instant oats; 1 cup mini marshmallows; 2 tablespoons sesame seeds; 2/3 cup dark chocolate chips; 1/2 cup butter; 2 tablespoons duck fat (or more butter); 1/2 cup dark brown sugar; 1/2 cup granulated sugar; 2 teaspoons vanilla extract; 1 large egg; 6 cups of your favorite ice cream