Make stir fry sauce – In a small bowl, combine all the ingredients for the stir fry sauce and stir to incorporate the corn starch, and set it aside until ready to use.
Saute the veggies – Set a large non-stick skillet or wok over medium-high heat then add the oil. Once the oil is hot and shimmering, add the vegetables and stir-fry for about 3 minutes or until the vegetables are just crisp-tender – do not overcook them.
Add Aromatics – reduce the heat to medium and add the butter, garlic, and ginger, and stir constantly for 30-60 seconds or until fragrant.
Add the stir-fry sauce – If the sauce has separated, stir it and stir it into your vegetables. Reduce the heat to medium/low and cook for 3-4 minutes, until the sauce thickens and vegetables reach your desired tenderness.
