Ingredients
Method
For the cookies:
- Preheat the oven to 180° C. Place baking paper on two rectangular baking trays of approximately 45cm x 33cm.
- In a medium bowl, sift the flour with the cinnamon, baking soda and salt.
- In another large bowl, beat the butter with the two types of sugar with an electric mixer or balloon whisk for 2-3 minutes until the mixture is light and fluffy.
- Add the eggs plus the molasses and vanilla extract. Beat for a further 1 minute until just combined.
- Add the flour mixture and beat just 30 seconds until smooth.
- Finally, add the oat flakes and beat until well combined and smooth.
- Spoon out portions of the dough and form balls of approximately 3-4 cm in diameter (can be done with the measure of 1 1/2 measuring spoons). There should be 30 balls of dough.
- Place the dough balls in the moulds 5 cm apart so that they do not stick together when baking.
- Bake at 180° C for 10-12 minutes until lightly browned and the centre looks a little raw (this is because they should be very soft).
- Remove the biscuits from the oven and leave to cool completely on a wire rack before filling.
For the filling and assembly:
- Place the butter with the shortening in a large bowl and beat with an electric mixer or balloon whisk for 2-3 minutes until very smooth.
- Add the icing sugar with the vanilla extract, salt and beat for a further 1 minute until fully combined.
- Add the marshmallow creme and beat for 2 minutes until very creamy and smooth.
- Take half of the biscuits and place them base side up to spread enough filling using a spoon. Then take the other half of the biscuits and place them on top of the biscuits with the filling to form biscuit sandwiches or whoopie pies.
- Let the whoopie pies rest for at least 15 minutes before eating to firm up.
