Focaccia with cheese and onion from the skillet

cheese onion focaccia

Focaccia is an Italian flatbread. It looks a bit like an American pizza with a thick bottom, and the preparation is almost the same.
We topped the focaccia with extra cheese and onion because we like that. You can go even crazier with some tomato or pieces of bacon.

ingredients for focaccia doughThe dough for focaccia is very straightforward to make. It is a matter of throwing all the ingredients in a bowl and stirring. This no-knead dough was made up by Jim Lahey. With this dough, anyone can bake bread or focaccia. Just assume that if we can do it, then you must undoubtedly succeed.

The amount of dough is for focaccia and a skillet of approximately 30 cm (12 inches). If you have a smaller skillet, make a little less dough. If you have a larger skillet, make more dough.

focaccia dough ready to riseYou can’t call this a nice ball of dough. But if all goes well, we will see excellent soft dough that will rise to be at least twice as large in 15 to 20 hours.

We cover this container with some cling foil and leave it on the counter. Within 8 hours, this dough will be doubled in size. You can let it stand for a total of 20 hours.

foccacia dough on the tableThe next day we will continue to process the dough. You are supposed to form the dough into a round ball. This is the hardest part of the entire recipe.

The easiest way is to provide your hands with a generous amount of flour. You then hold the dough in one palm and with the other hand pull the ball from top to bottom to 1 point while turning the ball in your palm.

It is a technique that you just need to get the hang of but with a little practice that will succeed.

form the dough in to skilletOnce you have formed the ball, you can coat the skillet with a little olive oil and put the ball of dough in the skillet. You can now carefully push the sphere with the fingertips in the shape of the skillet.

That will not succeed, and that is no problem. The dough will become softer after the second time rising, and it will almost fill the skillet on its own.

dough for focaccia in skillet covered with foilClose the skillet again with cling foil and put it back on the counter. 2 hours is enough.

baked onionsMeanwhile, we can cook the onions. You are not supposed to caramelize them so that they turn very brown. They only need to become soft.

During cooking, add some garlic, rosemary, pepper, salt, and balsamic vinegar.

focaccia covered with cheese and onionsAfter 2 hours, the dough has become softer, and you will see that the dough covers the skillet from edge to edge. Carefully cover the dough with mozzarella, onion, and Parmesan.

By the way, we have pulled the mozzarella into pieces beforehand and let it dry in a few sheets of kitchen paper. If the mozzarella is too wet, the dough will also get too wet during baking, and the top will not turn brown nicely.

our solution to raise the pizzastoneThe skillet is intended to be placed in the barbecue as high as possible so that the radiant heat coming from the lid ensures that the top is nicely browned. You must also bear in mind that you do not directly heat the skillet, as otherwise, the bottom of the bread will burn.

We place a plate setter on the grid so that it rises higher, and we put a pizza stone on top with some space in between. We use some metal reinforcement corners. You can also do it with a wad of tin foil.

check the focaccia through the top ventWe bake the focaccia at a high temperature of around 300°C (570F). So you use soft charcoal, and you open all the air sliders, and the top vent goes off completely.

Because you prefer to keep the barbecue closed as much as possible, we occasionally look through the opening of the top vent to see how far the focaccia is.

cheese onion focacciaThe focaccia should look like this after 20 to 30 minutes. The bottom has been nicely baked in the cast iron skillet and is a beautiful golden brown.

cheese onion focacciaAllow the focaccia to cool slightly, and then you can cut the bread.


  • 500 grams flour (18oz)
  • 325 grams water (12oz)
  • 15 grams salt (0.5oz)
  • 7 grams dry yeast (0.25oz)
  • 2 tbsp olive oil


  • 50 grams butter (1.7oz)
  • 2 large white onions
  • 1 clove garlic
  • 2 sprigs rosemary
  • dash balsamic vinegar
  • 125 grams mozzarella (4.5oz)
  • 50 grams fresh Parmesan (1.7oz)
  • pepper and salt (to taste)


  1. Put all the ingredients for the dough in a large bowl and stir everything together until you no longer see any dry flour.
  2. Seal the bowl with some cling foil and let the dough rest for 15 to 20 hours.
  3. Remove the dough from the bowl and shape it into a round ball with floured hands.
  4. Grease the skillet with a little olive oil and gently shape the bulb into a disk in the skillet.
  5. Close the skillet with some cling foil and let the dough rise again for 2 hours.
  6. Prepare a barbecue with an indirect heat of around 300°C (570F).
  7. Cut the onions into half a centimeter slices and finely chop the garlic. Fry everything in butter until the onion is soft. Sprinkle the onions with some salt and pepper and sliced ​​rosemary. The balsamic vinegar may be stirred in at the end.
  8. When the dough has risen for the second time, the skillet is completely filled. If this is not the case, carefully press the dough into the corners.
  9. Carefully cover the dough with the mozzarella, onion, and grate some fresh parmesan over it.
  10. Place the skillet in the barbecue and close the lid. The bottom and top are beautifully golden brown in 25 to 30 minutes. If this is not yet the case, close the lid again.

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