Remove the skin from chorizo sausage (if too thick) and slice it into ½ inch (1 centimeter) slices.
In a skillet/frying pan, melt the butter. Add the sliced chorizo and cook the sausage on low-medium heat for a minute or two before adding soy sauce, beer and brown sugar. Give it a stir.
Increase the heat and cook for a few minutes to reduce the beer. Stir from time to time. Stir in the ketchup.
Serve warm.
Notes
I used pale lager beer to make these bites.
You can use either sweet (dulce) or spicy (picante) Spanish chorizo. If you can’t find chorizo, you can try using kielbasa instead.