Ingredients Toffee Sauce: 2 1/2 cups heavy cream 1 cup sugar 1/2 cup light corn syrup 1 stick sweet unsalted butter Cake: 1/2 stick sweet unsalted butter, plus much more for greasing 6 ounces dates, pitted 1 cup plus two tablespoons all-purpose flour 1 teaspoon baking powder 1/4 teaspoon sodium