Ingredients:

  • 1 cup (225g) unsalted butter, melted and slightly cooled
  • 1/2 cup (100g) granulated sugar
  • 2 cups (250g) all-purpose flour
  • 1/2 tsp (3g) sea salt
  • 1 tsp (5ml) vanilla extract
  • 1.5 cups (300g) granulated sugar
  • 1/4 cup (30g) all-purpose flour
  • 4 large eggs, room temperature
  • 3/4 cup (180ml) fresh lime juice
  • 2 tbsp (12g) fresh lime zest
  • 1 tbsp powdered sugar for dusting

Instructions:

  1. Preheat oven to 350°F (180°C) and line an 8x8 inch pan with parchment paper, leaving an overhang.
  2. Whisk melted butter, 100g sugar, vanilla, and salt. Fold in 250g flour until a soft dough forms. Press firmly into the pan bottom.
  3. Bake the crust for 20 minutes until edges are light mahogany and center is pale gold. This par-bake creates a fat-sealed barrier.
  4. Reduce oven temperature to 325°F (160°C).
  5. While the crust bakes, whisk 300g sugar and 30g flour. Add eggs one at a time, whisking until smooth. Stir in lime juice and zest gently.
  6. Pour lime mixture over the hot crust.
  7. Bake for 30-35 minutes until edges are set and center has a slight jelly-like jiggle. Cool completely for 2 hours before slicing.