Heat a frying pan or wok on medium-high heat and add 2 tablespoons oil, swirling so that the bottom of the pan is coated.

预热平底锅的中间部分并加上2勺子油，旋转平底锅以致其底被有覆盖。

youdao

When the Onions are very soft and reduced, turn up the heat so they caramelise, then cook for another 12-15 mins, stirring along the bottom of the pan occasionally to mix in the brown sticky bits.

当洋葱充分变软和缩小后，在转大火12到15分钟，不断搅拌底部，使洋葱微微发焦，变成棕色小片。

youdao

Elements: High Efficiency Heating System with even heat distribution via Heating Elements cast into Aluminum, covering entire pan bottom.

元件：高效加热系统，整个锅底覆以铝铸型加热层，热分布均匀。

youdao

Scrape the bottom of the pan often with your spatula, and decrease the heat gradually as more and more moisture cooks out of the jam.

WSJ: Gourmet Spreads

Generously cover the bottom of a large frying pan with olive oil and place over a high heat.

CNN: Frankie's parmigiana

Return pan to low heat and cook until vegetables are soft, about 5 minutes, stirring constantly and scraping the pan bottom well.

NPR: The Comforts of Food