I wasn't sure if the cubes were vegan so I made it myself.
It turned out pretty good but it did take some time and effort! I found recipes to say that cooking the roux takes 10-12 minutes but for me it was more like 30+ minutes to get it to darken to the right colour. Have any idea why that might be? I used vegan butter and all-purpose flour.
Nice! I did things a bit differently, made a complex but mild spice mix, so I could use a lot of it, that plus the caramelized onions results in a nice dark colored sauce. If you do it that way making a dark roux becomes optional and thickening with cornstarch dissolved in a little cold water instead works well too.
Thank you! Yes, it's dredged in a seasoned flour mixture, (salt, pepper, garlic powder, and paprika from what I remember) breaded with Panko then shallow-fried in a small pot.