The £1,841 spent at Norwich City FC when Liz Truss was foreign secretary was for an "overseas shared values children's project", a minister said.
Labour's shadow attorney general Emily Thornberry queried the use of Foreign Office expense cards in a letter to the department last month,
In Parliament, Foreign Office minister Gillian Keegan said the payments were subject to "normal controls".
The Foreign Office did not comment on what the project was.
The payments to the football club's online shop were made on two dates - £1,318 on 21 October and £523.