Given the task definition and input, reply with output. In this task, you have to generate the title of the recipe given its required ingredients and directions.

ingredients: '3 med Red onions', '1 Tbsp. Virgin extra virgin olive oil', '1/2 c. Balsamic vinegar', '1 tsp Salt', '1/4 tsp Pepper', '1 Tbsp. Capers',<sep> directions: 'Preheat oven to 375 degrees F. Cut the onions in half, peel off the outer layer of skin and slice thinly.', 'Toss in a medium-size pan with extra virgin olive oil, balsamic vinegar, salt and pepper.', 'Cover the pan tightly and bake for about 45 min, or possibly till the onions are tender.', 'Stir in the capers and season to taste with additional salt and pepper.', 'Yields about 2 c.'
Balsamic Marinated Onions Recipe