Sarah,
Yup, you got that right regarding maple syrup. We keep a gallon or two of maple syrup in our refrigerator/freezer and in our stand-up freezer in the basement. Both of those appliances are part of our core systems powered by 2Kw of solar panels. Backup inverters are stored in galvanized cans for hard times. So barring misfortune we will still have refrigeration during SHTF. Maple syrup is available in a variety of forms, including the favorite liquid (classification based on color) and crystallized candies.
I often add it to recipes calling for sugar and highly recommend it be used when cooking a ham in the oven. Use it as an ingredient in your rub (1/4 cup) when prepping the ham. – M.A.