After searching high and low locally for some Lyle's Golden syrup unsuccessfully, I finally ordered some from Amazon. It arrived a few weeks ago, but somehow I never got around to using it until today.
I used this recipe with Erewhon Crispy Brown Rice cereal (gluten-free) and Fleischmann's UNSALTED Margarine. Little guy liked them but they were super-sweet! I think next time I'll leave out the extra Tablespoon of sugar (and maybe add a pinch of salt to make up for unsalted margarine). These also don't set up like the typical rice crispy treat since they don't have the marshmallows. It really did help to make individual servings in cupcake liners and a cupcake pan. They absolutely need to chill in the refrigerator, and for more than few minutes, or they won't hold together at all, and even after several hours chilling, they are still soft.
Crispy Rice Treats
1 Tablespoon safe margarine
4 Tablespoons golden syrup
3 cups crisped brown rice cereal
Place cupcake liners in pan. I needed 15 and didn't completely fill any of the liners.
In a saucepan over medium heat, melt the margarine. Stir in golden syrup. Take off heat and stir in cereal. Quickly spoon into cupcake liners and press down with spoon.
Place pan into refrigerator to chill and firm up.