Cinnamon biscuits

2 eggs
1/2 cup olive oil
3/4 cup sugar
2 tsp vanilla extract
2 1/4 cups plain flour, sifted
1 tsp baking powder, sifted
2 tsp ground cinamon, sifted
extra 1/2 cup sugar
extra 2 tsp ground cinamon
80g unsalted butter
1/3 cup sugar
2 tbsp boiling water
2 tbsp very cold milk
1 tsp vanilla paste
icing sugar for dusting

1. preheat oven to 180 C. Line 2 oven trays with baking paper. Put eggs, oil, sugar and vanilla in the small bowl of an electric mixer and beat until thick and pale. Add flour, baking powder and cinnamon and stir gently to combine.
2. Put extra sugar, and cinnamon on 1 prepared tray and stir to combine. Roll a tsp of dough into a ball, then roll in sugar mix. Repeat with remaining dough.
3. Put balls, spaced 5 cm apart on other prepared tray and press down lightly on each to flatten. Cook for 8-10 mins or until golden. Put tray on a wire rack to cool.
4. Put butter and sugar in the small bowl of an elcric mixer and beat until the mix is very pale and fluffy. Add boiling water and beat for a further 1 min then add milk and vanilla paste and beat until mix is light and fluffy.
5. Sandwhich biscuits with tsp of filling. Lightly dust with icing sugar to serve.

Note: filling can be flavoured with zest, chocolate, nuts etc.