1Put the cashews in a glass or ceramic bowl. Cover with cold water. Cover with plastic wrap and refrigerate for 4 hours, or overnight, to soak.
Tip: The longer you soak the cashews the creamier the consistency of the dip will become.
2Drain the cashews, discarding the water. Put the cashews in the blender. Add the garlic, sesame seeds, coconut milk, tahini, lemon juice, oil and cayenne and secure the lid.
3MIX for 15-20 seconds until smooth, scraping down the side and stopping occasionally to use the tamper to press the ingredients into the blades.
4Spoon the dip into a serving bowl, sprinkle with extra cayenne pepper. Serve with tortilla chips.