To the Instant Pot, add sliced onion, minced garlic, 1 tbsp / 15 ml maple syrup, 1 tbsp / 15ml honey, 2 tbsp / 30 ml apple cider vinegar, 3 to 5 drops liquid smoke, and ½ cup / 125 ml water or unsalted chicken stock to the Instant Pot Pressure Cooker. Mix well.