Roast the cashews and macadamia's until they're golden brown and fragrant. Set aside in a bowl to cool.
Then roast the sesame seeds in a pan until they're fragrant. Set aside in a bowl to cool.
Put all the ingredients, except the sesame seeds and maple syrup, in a food processor and blend. It may take a while for the mixture to become one ball and sticky, up to 4 minutes.
If it takes more than that, or if the mixture isn't sticky enough, you may want to add a little bit of maple syrup to make it stickier.
With wet (!) hands, form 12 balls. Roll them through the roasted sesame seeds to finish them.