Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], recipe: cut onions in half; cut halves into 1/2-inch-thick slices. combine all ingredients in a 3 1/2 quart slow cooker. cook, covered, at high 8 hours or until golden brown and very soft. store in an airtight container. refrigerate up to 2 weeks or freeze up to 2 months, if desired.

Target recipe: melt the butter in a large skillet, add the onions. cover and cook over low heat 30 minutes. remove cover, raise the heat, stirring to keep the onions from sticking. as soon as the onions begin to brown- in about 10 minutes- lower the heat. cover and cook for 10 minutes. repeat step 2. repeat step 3. add the vinegar, salt and pepper. turn the heat to high and stir with a wooden spoon until the vinegar is evaporated~ about 5 minutes. this dish can be made in advance. to reheat: cook over low heat for 10 minutes. large, mild-flavored onions work best. caramelized onions can be frozen in an airtight container up to three months.