• Start by making the pastry cream as it needs to set in the fridge for at least 1 hour. While it sets, make and bake the cookies.

Oatmeal Cookies

• Preheat your oven to 180°C/350°F and line a baking sheet with parchment or a silicone mat.
• Whisk together the oil, water, sugars, cornstarch, vanilla, baking soda, salt and cinnamon.
• Whisk in the flour until a smooth mixture forms then add in the oats and stir until well incorporated.
• Portion the dough out onto the baking sheet in 20g/1 tbsp balls. If it’s a hassle to work with, you can let it sit for about 20 minutes at room temperature to let the flour hydrate and stiffen the dough.
• Bake for 9-11 minutes until golden and let set on the sheet for about 2 minutes before transferring to a wire rack to cool completely.

Assembly

• Once the cookies have completely cooled, prep the pastry cream as instructed in the recipe so it’s ready to use. You can use a piping bag or just spread it onto the cookies.
• Leave a small hole in the center of the cookie when piping/spreading the cream and spoon about ½ tsp of jam in it. Then close the sandwich using a similar sized cookie.
• The finished sandwiches will keep covered in the fridge for about 1 hour since pastry cream forms a skin very easily.