Peel the parsnip, then grate it coarsely.Grate the courgette too.
Mix them in a strainer, and add some salt. Rest for 5 minutes, then squeeze out the excess liquid.
Transfer the mixture to a bowl. Add the spices, minced garlic, baking powder and chickpea flour. Season with salt & pepper, then toss well. You should get a slightly sticky, malleable mixture. If it’s too dry, add a drop of lemon juice.
Using your hands, shape 4 or 6 flat patties.
Heat some olive oil in a pan, or spray the patties with olive oil. Fry them on each side until golden, or put them on a baking sheet and bake for about 10 minutes.