I ask because I attempted a recipe for vegan "meatballs" today. The base was uncooked red lentils, which raised an eyebrow. Shocker, they tasted like raw red lentils (spices and sauce notwithstanding). The recipe also called for baking soda, so they exploded a little in the tomato sauce due to the acidity. 2/10 looking for a different recipe.
I wouldn't say it's my worst, though. One time I tried to hard boil an egg in the microwave. With the shell still on.
What's a culinary project that didn't go your way?
Burnt toffee before I was vegan. Looked salvageable enough that you'd taste it and get an initial sweet hit before a horrible burnt aftertaste that wouldn't go away. Impossible to dislodge from the pot, had to dissolve over several days.
This is something I probably should have put in the OP, but I was candying oranges recently and forgot to turn the burner off. Dislodging the resulting carbonized orange disc from the pan was a process.
when I was a kid me & my mum tried making peanut brittle. it burned, we had to throw the pan in the outdoor bin, leave the windows open, and leave the house for a few hours