Soak toast in cold water. Finely dice the gherkins. Squeeze the toast well and knead with minced meat, egg, cucumber cubes, mustard, salt, pepper and fried onions. Form 4-8 meatballs with your hands.
Wrap 2 slices of bacon crosswise around the meatballs. Heat the oil in a frying pan. Fry the meatballs on both sides for approx. 6 minutes at medium heat.