Karamell

Burnt sugar goes bitter; green apple acid reads it as fruit instead.

Burnt sugar supplies the bitterness a fruit with no acid and no tannin cannot.

Same Maillard family as the baked layers, just taken several minutes further.

The milk in the bar was already cooked. Caramel is just more of the same reaction.

Salt makes the bitterness read as depth instead of as a mistake.

Fat stops the cook dead and carries the volatiles the sugar cannot hold.

Cold cream into hot sugar halts the browning. Late, or not at all.

Malic acid is the only thing between this and a tin of toffee.

Sodium blocks bitterness, so burnt sugar reads as deep instead of acrid.

Same Maillard family as the crust, just further along.

Praline is these two and nothing else. The nut supplies all of the fat.

Cooked sugar clings to a waxy nut better than it does to a dry one.

Sugar alone makes no pyrazines - no nitrogen. The nut brings them; the caramel brings maltol.

Two controlled burns. The bitterness stacks, so pull the sugar off early.

Cocoa tannin against burnt sugar, with salt deciding which one wins.

Vanillin is what stops caramel reading as purely scorched.

Terpene citrus over burnt sugar. The bitter pith agrees with the bitter sugar.

The wine was literally heated until its sugars browned. It is caramel with acid.

Burnt sugar on both ends. The caramel gives the roast a sweet exit.

Same reaction, different substrate. The tea is a leaf that got caramelised.

Cooked sugar over a nut with no sweetness of its own worth mentioning.

Cooked sugar and cooked seed are one browning at two different temperatures.

Barrel char and pan char. Deglaze with it and the alcohol strips the pan clean.

Piperine sits in the bitter end of the caramel where the sweetness has stopped.

Sweetcorn already tastes half-caramelised. This just finishes the argument.

Sugar burnt to bitter, then salted fish. The funk sits under the char.

Koji amino acids finish the Maillard the sugar started without them.

Salt and glutamate in burnt sugar: the Vietnamese braise, not the pudding.

Burnt sugar and burnt wood, plus salt to stop either one going bitter.

Blue mould and scorched sugar. The bitterness is the only thing they share.