Nutter Butter ice-cream sandwiches

1.For vanilla parfait, stir sugar and 180ml water in a small saucepan over low heat until sugar dissolves. Increase heat to medium-high and cook until syrup reaches 105C on a sugar thermometer (5-7 minutes). Meanwhile, whisk yolks on medium speed in an electric mixer until pale and creamy. While whisking, pour syrup slowly into the bowl, then continue to whisk until cool (6-8 minutes). Whisk cream, vanilla extract and vanilla seeds to soft peaks in a separate bowl, then fold into yolk mixture. Pour into a 22cm x 11cm loaf tin lined with plastic wrap and freeze until firm (6 hours).

2.Preheat oven to 170C. Mix butter and peanut butter in an electric mixer with a paddle attachment, then add sugars and mix until pale (5 minutes). Whisk egg, milk and vanilla in a separate bowl to combine, then slowly add to butter mixture and mix to combine. While mixing on low speed, sift in flour, baking powder and bicarbonate of soda, then add oats and peanuts. Form heaped tablespoons of mixture into balls, place balls 4cm apart on oven trays lined with baking paper and bake until evenly browned (12-16 minutes). Set aside to cool on a wire rack.

3.Spread half the biscuits with 1/2 cup of vanilla parfait each (you may have a little parfait left over), sandwich with remaining biscuits and serve.