Grease an 18 cm square baking tin with coconut oil.
Melt together the coconut oil, treacle, sugar and syrup in a large saucepan, stirring until the sugar has dissolved.
Add the remaining ingredients and mix well.
Spoon the mixture into the prepared tin and level the top.
Bake in a preheated oven, 180°C (350°F), Gas Mark 4, for 18–20 minutes until golden.
Leave to cool in the tin for 2 minutes before cutting into squares, then leave to cool completely in the tin.
Store in an airtight container and eat within 5–6 days.
Notes / Tips / Wine Advice:
For festive flapjacks, melt together the coconut oil and sugar with 25 g black treacle and 90 g golden syrup, stirring until the sugar has dissolved. Add 230 g gluten-free rolled oats, 1 tablespoon sultanas, 1 tablespoon mixed peel and 1 teaspoon ground cinnamon and mix well. Spoon into a greased 18 cm square baking tin and level the top. Bake and cut into squares as for Apricot & treacle flapjacks. Calories per square 198