Step 1 Preheat the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional).
Step 2 In a bowl, mix the beef, Dijon mustard, mashed garlic, caraway seeds and half of the salt. Create 12 small meatballs (two for each muffin).
Step 3 Place the drained sauerkraut at the bottom of the muffin pan (about 2 tbsp per muffin).