Start by gathering all your ingredients. This makes things a lot smoother as you won't have to pause in the middle of your mix. Make sure the butter is at room temperature for easy mixing.
In a large bowl, combine the crushed malt biscuits with soft butter. Use your hands or a spatula to mix until the crumbs are fully coated with butter. They should smell heavenly already!
Next, add the sweetened condensed milk to the mixture. This step is crucial! Mix until everything is well incorporated and you have a sticky, cohesive mass. You might want to lick the spoon; I won't tell anyone!
Fold in the desiccated coconut and your fruity confectionery mix. This is where the magic happens. As you mix, you can practically feel the excitement building—this cake is going to be a hit!
Line a rectangular baking tray with baking paper. Transfer your gooey mixture into the pan and press it down firmly. Make sure it’s an even layer. The more you press, the denser your cake will be!
Cover the pan with plastic wrap, and refrigerate for at least two hours. You want it to firm up nicely. If you can wait, letting it chill overnight will make it even better.
Once chilled, remove the cake from the pan and slice it into squares or bars. A sharp knife works best. Serve them fresh, and watch those smiles appear!