How to make a lemon tart

Name: How to make a lemon tart
Prep time: 35 min
Cook time: 1 h 30 min
Total time: 2 h 5 min
Cuisine: French
Ingredients: 360 gm eggs (about 8); 15 gm (about ½) egg yolk, white reserved for brushing; 280 gm caster sugar; 240 gm crème fraîche; 200 ml lemon juice (4-5 lemons); Pastry; 250 gm plain flour; 150 gm unsalted chilled butter, diced; 30 gm pure icing sugar, sieved, plus extra (optional) for dusting; Finely grated rind of 1 lemon; 1 egg (55gm), lightly whisked