Peel the baby/pearl onions. Melt the butter in a skillet over a low/medium heat. Add the peeled onions. Sweat the onions in the butter for 15 minutes to soften and brown. Stir frequently, turning and basting the onions in the melted butter.
Step 2
Add the balsamic vinegar, thyme leaves, and maple-flavored syrup to the pan. Season the onions with salt and stir well to combine. Reduce the heat to low.
Step 3
Continue to cook low and slow for a further 15-20 minutes, turning often. After this time, the onions should be soft, golden and caramelized. Cook longer if needed for softer onions. Serve the onions hot alongside your Keto Thanksgiving main.