Mustard Butter

From 1001 Sandwiches (1936)

“This wasn’t just plain terrible, this was fancy terrible. This was terrible with raisins in it.”

-Dorothy Parker

Mustard Butter

1 egg

2 tablespoons mustard

2 tablespoons sugar

1 tablespoon flour

1 cup vinegar

2 tablespoons butter

Beat the egg, add the sugar and mustard and beat until smooth. Add vinegar a little at a time, then boil until it thickens. Add butter, just before removing from fire. Use cold, adding a little cream to make of spreading consistancy.

I did not have powdered mustard, so I ground whole mustard seeds in a mortar. The recipe did not actually say to add the flour, so I added it with the sugar, as the ingredients seemed to be written in the order used.

This is not mustard butter so much as it was vinegar that was allowed a bit of mustard, as a treat. I am honestly not sure if this is a food or a cleverly disguised vinegar-based bioweapon. I gassed my partner and cat out of the (admittedly tiny) apartment with vinegar fumes, making this sandwich spread. It was sort of like terrible, vinegary hollandaise, except with bits of curdled egg because, for some thrice-forsaken reason, the recipe said to actually boil the thing. The vinegar obliterated pretty much any other flavor. Maybe this would have been marginally less terrible had I used something other than basic Heinz white vineger, but I am skeptical.

I tried. Roast beef and bread rendered it potentially eatable, though not (in any sense) enjoyable. Even very little made the bread unpleasantly soggy. Zero stars; will never make again.