Make this recipe a recipe that people in that category can eat. categories: ['low_sodium'], recipe: combine the olive oil and butter in a large heavy-bottomed saucepan over medium heat. when the butter foams, add half of the sliced onions and 2 of the bay leaves. sprinkle with half of the sugar and half of the salt. add remaining onions, bay leaves, sugar and salt. cover, reduce heat to low, and cook for 20 minutes. uncover, stir, and increase heat to medium. cook for 15 minutes, stirring occasionally. increase heat to high and cook, stirring constantly, until the onions are a deep golden brown, about 10 minutes. add the wine and stir, scraping bottom of pan to dislodge any browned bits. cook for 4 or 5 minutes longer. serve hot or at room temperature.

Target recipe: melt the butter in a medium heavy-based saucepan. add sugar. stir over low heat until dissolved. add onions and cook. cover and continue to cook on low heat for 30 minutes. add garlic and balsamic vinegar. season and cook uncovered on low heat for another 30 minutes. stir every few minutes. once cooked, transfer to a bowl. cool slightly before serving.