Slow Cooker Mac & Cheese

Ingredients:   1 16oz box elbow macaroni 2 1/2 cups whole milk 1 12oz can evaporated milk 1/2 cup heavy cream 4 tablespoons butter (I used salted) 1 teaspoon salt 1/2 teaspoon pepper 1/4 teaspoon paprika 1/8 teaspoon cayenne 1/4 pound American Cheese (I used sliced...