I have not tried this recipe. I got this recipe from Obesity Help. She says The ingredient list is specific, and substitutions won’t work. To make this pie you must have Steel’s Country Maple Syrup, which can be ordered. When I tried to make this recipe using other brands of sugar-free syrup, the custard became muddy and quite frankly, tasted awful. The Steel’s syrup is very thick, and that makes a huge difference. Even though this pie is sweet, it doesn’t have any sugar to act as a preservative and must be kept in the refrigerator, or it will spoil .