I adore latkes, a delicious Jewish staple of shredded fried potato, like a mini rosti. Traditionally served with sour cream and apple sauce, they are hard to beat - but I love this earthy beetroot interpretation. As with potato latkes, you need to squeeze the grated beetroot of all of its juices before adding an egg and shaping it into cakes. Horseradish is perfect with beetroot, you can add it to the latke as I do here, or to the sour cream if you prefer.