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Old-Style Onion Tart
A rustic onion tart with a homemade flaky and crunchy pastry, flavored with whole grain mustard, cream and egg. Perfect as a starter or main course accompanied by a small salad.
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Critical Success Points
- • Keep the butter very cold when preparing the dough.
- • Do not overwork the dough to retain flakiness.
- • Gently caramelize the onions for 20 minutes.
- • Do not add too much water to the dough to avoid a sticky texture.
- • Bake at 180°C until the crust is nicely golden.
Safety Warnings
- • Handle cold butter with clean hands to avoid contamination.
- • Be careful of hot oil splatters when cooking the onions.
- • Use gloves or a kitchen sleeve to remove the hot dish from the oven.
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