Lemon-passionfruit meringue pie (suurlemoen-grenadilla meringuetert) | Rainbow Cooking

Ingredients

• 180 gram (3/4 of a 250 gram packet) Marie or Vanilla Wine biscuits (finely crushed)
• 100 gram butter (melted)
• Zest of 2 lemons
• 1 can (397 gram) Condensed milk
• 1/2 cup (125 ml) lemon or lime juice
• 3 eggs, the yolks separated from the whites
• 3 fresh granadillas or 1x110 gram tinned granadilla or 1/2 bottle of 230 gram tasti passionfruit in syrup
• 1/2 cup (125 ml) castor sugar
• 1 teaspoon (5 ml) vinegar
• 1 tablespoon (15 ml) cornflour