FYI - this isn't something to munch on when undertaking Whole30 unless you eliminate the oats and sugar.
1. Put oats, walnuts, coconut, chia seeds, cinnamon, cocoa and vanilla into a food processor and process until all ingredients are finally chopped
2.With the motor running, start adding the dates a few pieces at a time, processing until all the dates have been added and the mixture is starting to come together. Use your hands to bring it together completely, adding 1-2 teaspoons of cold water if necessary.
3. Press the mixture evenly into a lined (with baking paper) round 20cm (8 inch) cake tin, smoothing the surface firmly with the back of a metal spoon. Cover and refrigerate until ready to serve.
4. To serve, dust with icing sugar and cut into thin wedges.