Complete the dramatic chef's internal monologue after tasting his ruined dish. Select the grammatically correct option.

My mouth is completely on fire! I wish I _______ the entire bottle of ghost pepper hot sauce into the broth!

The correct answer is hadn't poured.

When talking about regrets or hypothetical situations in the past, we use wish + the past perfect tense. The chef poured the sauce in the past, so he wishes he had not poured it. Using the simple past ("didn't pour") would incorrectly refer to a present wish about a present habit or state.