Put margarine, golden syrup, brown sugar in a pan and melt (if you have a microwave then it can be done in that)
when melted add to flour and rolled oats. Mix up.
spread into a greased baking tin and bake at 180 for about 15 mins.
you can experiment with this recipe and add things like chopped apricots, glace cherries, chocolate chips. You can even wait until its cooked and then cover with melted chocolate.
dont try and take the flapjack out of the tin too early you need to let it cool a bit. When it is just warm mark it out into squares and then cut up.