This is the syrup recipe I make. I am not sure where I got the recipe, but I have seen it posted several times on many blogs. Or at least something similar.
4 cups white sugar
1/2 cup brown sugar
2 cups water
2 tsp maple flavoring or butter flavoring or vanilla ( most of the time I use vanilla because that is usually what I have on hand)
Mix water and sugars in a pot and simmer for 15 minutes
Remove from heat and stir in flavoring
Let cool completely and then pour into a container.
This does not have to be refrigerated. I do find that after awhile it starts to crystallize at the bottom of the jar. But this only tends to happen if it sits for awhile. This is all my family uses now for pancakes, waffles and french toast :)