Pumpkin pie with pecan praline

Ingredients

• 1 1/2 cup plain flour
• 1/3 cup icing sugar
• 125 gram butter, chopped
• 3 eggs, at room temperature
• 1/2 cup firmly packed brown sugar
• 3/4 cup evaporated milk
• 1 cup mashed pumpkin, at room temperature
• 1 teaspoon ground cinnamon
• 1/2 teaspoon mixed spice
• 1/4 cup chopped pecans, lightly toasted
• 1/4 cup caster sugar
• vanilla ice-cream, to serve