2 eggs 150g caster sugar, plus extra for the praline 200g kumara, peeled and grated 100g ground almonds 100g rice flour 2 tsp baking powder 1/4 tsp salt 3 Tbs espresso plus extra for the icing
1 Preheat oven to170C. Grease a 12 hole muffin tray or line with paper cases.
2 Beat the eggs and sugar together until pale. Fold in the kumara and ground almonds. Sift rice flour, baking powder and salt together and fold in with the espresso. Spoon in the tins, leaving a centimetre for rising then bake for approximately 20 minutes or until the tops spring back.
3 To make the icing: whisk the butter until fluffy and pale then add half the icing sugar with the mascarpone. Whisk then add the remaining icing sugar and espresso and beat until smooth. Ice the cooled cakes and top with praline.
4 To make the praline; melt the sugar in a warm pan. When golden add the almonds, quickly stir, then tip on a lightly greased tray. Leave to set then either chop or pulse in a food processor.