I can't cook, but I can start an argument from scratch.

"I can't cook, but I can start an argument from scratch" is a humorous and self-deprecating statementwhic plays on the double meaning of "from scratch." It highlights a lack of culinary skill while boasting a (perhaps unwanted) talent for instigating disagreements.

The humor lies in the unexpected application of "from scratch" to the act of starting an argument. It suggests that while the speaker might not be able to create a meal using raw ingredients, they are adept at creating conflict out of nothing or a very small trigger.

In essence, the quote is a witty way of saying, "I might not be able to create something positive and nourishing like a meal, but I certainly have a knack for creating something potentially negative and heated like an argument, even with very little to start with." It's a memorable and funny way to describe someone who might be a bit prone to debate or disagreement.