Peel and chop the onions and fry in 30 ml of oil until translucent. Add 250 g of ham and the rest of the oil. Switch off the flame, you can continue to cook using the residual heat.
In the meantime, stir the dough, a hand mixer is not absolutely necessary. Also works with a spoon. Add the entire contents of the pan to the batter and stir vigorously so that everything is nicely distributed.
Preheat the oven to 200 °. Fill the dough into small muffin molds, place on a baking sheet and bake at 180 ° for 15-20 minutes, depending on the oven and your preference.
Let muffins cool overnight. You can also sprinkle them with Emmentaler cheese before baking. Are very delicious and go down well with friends and colleagues.