French Onion Tart Recipe

Step 1: To begin making French Onion Tart Recipe, make pastry dough first

Step 2: Add flour, salt, sugar  and butter cubes into a wide bowl

Step 3: Using your fingertips break all the butter cubes and rub it with flour

Step 4: Add chilled water little at a time and knead to make a smooth dough

Step 5: Roll the dough and cover it with cling wrap and place it in fridge for about 1 hour

Step 6: To make caramelized onions, heat butter in a wide pan

Step 7: Add thin sliced onions into the pan and sweat the onions

Step 8: Add salt and sugar, cook until onions are nice softened and browned evenly

Step 9: Add balsamic vinegar, lime juice and thyme; increase heat to high; boil for 2--3 minutes to reduce, stirring occasionally

Step 10: Take off the heat and set aside to cool

Step 11: To prepare the tart preheat the oven to 200 degrees centigrade and line a tart sheet pan with parchment paper

Step 12: Remove pastry from refrigerator and allow it to come to room temperature for 10 minutes

Step 13: Divide the dough into equal portions and roll the dough to about 2-3 mm thick

Step 14: Place the dough on the prepared sheet pan and trim the edges

Step 15: Refrigerate again for 10 minutes

Step 16: Fill a parchment sheet with uncooked beans (This is only to avoid the tart to puff up and later the uncooked beans are removed and are not the part of the recipe)

Step 17: Place it over the tart dough that will be baked

Step 18: Pop this into an own and bake for about 10 minutes or until you see brown spots on the tart

Step 19: Remove the uncooked beans parchment filling, and fill it with caramelized onions, sprinkle some more salt and pepper powder over the top and sprinkle some thyme leaves

Step 20: Bake in oven for about 15 minutes

Step 21: Serve French Onion Tart Recipe along with tomato ketchup