1. Heat oven to 450 degrees.
2. Evenly season salmon, both sides, with salt and pepper and put in baking dish.
3. Bake in preheated oven, uncovered, about 10 to 15 minutes. Salmon should be solid color throughout.
4. As fish is cooking, take out a small saucepan and pour balsamic vinegar in. Place saucepan over medium-high heat and cook, stirring frequently until liquid reduces by about a third. This should take about 10 minutes. The more it reduces, the thicker and sweeter it will get.
5. Remove the saucepan from the heat when it is reduced and add the oil, whisking as you add, then add the lime juice, and continue whisking until color gets lighter. Taste and add salt and pepper if desired.
6. Spoon the balsamic reduction sauce over the salmon when it comes out of the oven. Serve salmon while still warm.
This recipe is a great way to add a sweet and savory glaze to salmon without adding all that brown sugar, honey, maple syrup, or other sugary ingredient. Remember to check the label on the balsamic vinegar you buy to see if there are any added sugars, especially if you are eating low-carb.
Salmon is one of those nutrition 'powerhouse' fish we love. But, when you're trying to reduce sugar in your diet, you usually have to skip all the lovely sauces that suit salmon so well. But not with this one. The trick is finding ways to serve salmon with sauces and glazes that don't have added sugars. This recipe fits the bill!