INGREDIENTS
1 cup rolled oats
3/4 cup desiccated coconut
1 cup plain flour
3/4 cup sugar
125g (4oz) butter
3 tablespoons golden syrup
3/4 teaspoon bicarbonate of soda
2 tablespoon water

Preheat oven to 150C (300F/slow)

Mix oats, flour, sugar and coconut together.
Melt syrup and butter together.
Mix soda with boiling water and add to melted butter and syrup. Allow to foam.
Add to dry ingredients.
Place 1 tablespoonfuls of mixture on greased tray (allow room for spreading).
Bake for 20 minutes.
Loosen while warm, cool on trays.
(makes about 35)

The differance between chewy and crunchy biscuits is a couple of minutes in the oven so if you want chewy take them out bang on 20 minutes or even a couple of minutes before 20 minutes.
It's one of those things where once you know your oven and the recipie you can judge it yourself IYKWIM.
As far as I remember these ones always turned out chewy.

I haven't made these since primary school (the recipie is from my early 80's recipie book that my school did for fundraising) but I might make them tomorrow because they are delish.