While others have pointed out it definitely can it also contains lecithin so it can technically create emulsions like mayonnaise and hollandaise
Eggs contain far more so I don’t know how well this would work but it should? It also contains albumin and globulins but in the white, which is traditionally not used for these. However they can further stabilize the emulsion. But blood also as fibrinogen which is part of what makes it gel when heated as part of coagulation and this would impact texture
Essentially like:
1 part blood 3-4 parts neutral oil Tsp vinegar or lemon juice Tsp Dijon Season to taste
Prepare the same as mayo
You could also boost lecithin content with additional lecithin from soy or sunflowers but that’s kind of against the spirit
I personally am vegan but find the food science of this interesting. I think eating animals is cruel but at the same time I would be interested to know if this actually could work or if you ended up with blood vinaigrette.
Is it teflon coated? If so you should be careful. Many of the suggestions here are for increasingly abrasive options which will scratch that coating and cause it to eventually flake off, which means it will get into your food, which definitely not something you want to eat
On one hand the grease itself is probably not a food safety issue anymore. Similar to a cast iron pan once oil/grease heats enough on a surface it polymerizes and essentially bonds to the surface. This is generally safe unless the oil is exposed to very high temps (beyond what is typically used for cooking) but it looks bad on stuff like sheet pans
However you do want to be a bit more diligent cleaning as a result. Unlike a cast iron pan where the polymerization layer (seasoning) is generally very smooth this is generally not; it is bumpy and has more nooks and crannies. This means there are more areas where filth and bacteria can be harbored. Not a huge issue, just make sure you clean well.