In a large nonstick skillet, heat 1 Tbsp avocado oil over medium heat. Working in batches, add the dumplings to the skillet, rubbing the bottoms in oil, leaving space in between each. Cook on the first side until golden brown on the bottoms (4–6 mins). Flip and cook until golden brown and internal temp is 165F (2–4 mins). Repeat, adding 1 Tbsp of oil between each batch, until all the dumplings are cooked.