Preheat oven to 180•c and lightly grease a small baking pan. I used a 13 x 9 inch pan.
Prepare crust by adding coconut sugar to a food processor and blending to a fine powder. Now add in the flour, vegan butter, cornflour and salt and pulse until it forms a fine crumb.
Spread the mix into the prepared baking tin and press into a firm even layer. Chill for around 15 minutes and then bake for 35-40 minutes, until firm and golden. Remove from the oven and set aside to cool.
Prepare the filling by adding agar agar to a small pan with the cold water. Allow to soak for 15 minutes.
Squeeze and zest lemons and mix with the arrowroot powder.
Heat up agar agar and bring to a boil. Add the icing sugar and turmeric and simmer for 10 minutes until thickened. Lower the heat and add in the lemon juice, zest and arrowroot. Keep whisking continuously until thick and smooth.
Pour the mix onto prepared crust and chill in the fridge until firm, about 1-2 hours. Slice into squares and serve. Keep well in an airtight container for up to 4 days, or frozen up to 1 month.
Recipe by Bo's Kitchen at https://www.boskitchen.com/lemonbars/