Heat a medium skillet over medium-low heat and add 1 tbsp butter.
Once the butter has melted, add in the sliced onions and stir using a wooden spoon until all the onions are coated in butter. Allow to cook for 10-15 minutes until browned and soft.
Transfer the onions to a bowl and set aside while you make and refrigerate the dip.
Combine sour cream and cream cheese in a mixing bowl, blending well.
Add chives, parsley, garlic powder, salt, and pepper. Mix until well combined, adjusting seasonings as desired.
Refrigerate for at least 30 minutes to allow flavors to combine. Top with caramelized onions, and serve immediately with veggies and low carb crackers.
Best stored in an air tight container in the fridge up to 7 days.