Illusory promises provide mutuality of benefit required in establishing consideration,but only if they involve promissory estoppel.

Illusory Promises

Commitments made in a contract that are vague or unenforceable because they do not bind the promisor to a specific action.

Mutuality of Benefit

The principle that both parties involved in a contract or agreement must stand to gain from the arrangement for it to be valid and enforceable.

Promissory Estoppel

A legal principle that prevents a person from going back on a promise, even if it was not a formal contract, when the other party has relied on that promise to their detriment.