Cost Breakdown

Critical Success Points

• • Use very cold butter and work it with fingertips to obtain specks.
• • Do not overwork the dough to avoid excessive gluten development.
• • Caramelize the onions until golden without burning.
• • Bake the tart until well golden to ensure a crispy crust.

Safety Warnings

• • Be careful of hot oil splatters when cooking the onions.
• • Use oven mitts or kitchen gloves to handle the hot dish out of the oven.