Crumble the rice cakes by hand into small crumbs. Chop the onion into small cubes.
Mix the onion pieces with the rice cakes and the spices. Add a little water drop by drop until the mixture has turned into a moist mass. Mix the rice waffle mixture with the tomato paste and the oil.
If desired, add a little more garlic.
Let the mixture soak in the refrigerator for about half an hour before consumption.