the same result you had: about half the caramel stayed in the jar after inverting. I thought your sugar issue might be because water wasn't underneath the glass jars, so I lifted them on their lids during the bain marie process. I also used Theo's method of caramelizing the sugar, which meant there was no water added...just pure sugar.
Since the jar was already lifted 1/2 inch, I didn't fill them beyond halfway because I didn't want to overfill the pan with hot water. About half the sugar melted out onto the flan; the rest stayed in the jar. Admittedly this makes me happy because I'm not a fan of this overly sweet topping, but I would have liked the flan to be a bit thicker. Next time I'll use a deeper roasting pan.
Simply LOVE this idea for serving guests. Wish I could have solved your sugar problem
https://recipeswap.org/fun/wp-content/uploads/swap-photos/flan-rings.jpg
Since the jar was already lifted 1/2 inch, I didn't fill them beyond halfway because I didn't want to overfill the pan with hot water. About half the sugar melted out onto the flan; the rest stayed in the jar. Admittedly this makes me happy because I'm not a fan of this overly sweet topping, but I would have liked the flan to be a bit thicker. Next time I'll use a deeper roasting pan.
Simply LOVE this idea for serving guests. Wish I could have solved your sugar problem
https://recipeswap.org/fun/wp-content/uploads/swap-photos/flan-rings.jpg