For many of us, jelly is a treat that’s often left behind with our childhoods – alongside the likes of Barbies, The Wiggles and long division. And yet, this refreshing, brightly hued, wobbly dessert need not be relegated to the category of kids’ party treats. Why should kids have all the fun? In fact, we think this playful jelly slice recipe is grown-up enough that it’ll please adults and children of all ages. This one came to us from Taste member ‘bird55’. What we love about this jelly…