Peel the potatoes and cut them into small cubes. Tip if you have more time: make incisions in the potato and then break off the pieces. Then you have somewhat irregular shapes and more starch can also be released.
Peel the red onion and cut it into rings.
Remove the garlic from the outer layer and cut into cubes. Later we will press them through the garlic press.
Halve the chorizo lengthwise and then cut into parts of about 0,5 inch.
Cut the spring onion into rings and keep the white and green parts separated.
Making the stew
Heat olive oil in a pot and then add the red onion in rings.
Press the garlic through the garlic press and add it to the onion.
Deglaze the onions after a few minutes with the white wine. Let it reduce briefly.
Then add the cubes of chorizo sausage. Soon the red moisture will be set free.
Then add the potatoes.
Add water to the stew until everything is just submerged. (about 400 ml).
Finally, add the bay leaves. Then put the lid on the pot and let it simmer for 20 minutes.
After 15 minutes you can add the white spring onion rings and season the stew to taste. Be careful with salt because the chorizo is already quite salty.
Optionally, you can also add some potato starch if you want the sauce to thicken more.
After 20 minutes you can transfer the stew into deep plates and finish with the green rings of the spring onion.
Notes
A good advice: make the stew already one day in advance, or make large quantities so that you can have it the day after also. It will even taste much better on the 2nd day!