Oliebollen met Krenten en Rozijnen (Dutch Doughnuts with Raisins)
You can test the oil temperature in step 3 by adding a small piece of dough. If it sizzles and rises to the top, the oil is hot enough to start frying.
We have determined the nutritional value of oil for frying based on a retention value of 10% after cooking. Amount will vary depending on cooking time and temperature, ingredient density, and specific type of oil used.