Icing Sugar

Buttery, crisp, and tender — perfect for tarts, tartlets, and thin cookies 💛 Ingredients: (For one 22–24 cm tart or about 12 small tartlets) • 250 g all-purpose flour • 125 g cold butter, cut into cubes • 100 g icing sugar • 1 medium egg • 1 pinch of salt Optional: • 1 teaspoon vanil