Everyone at that time imagined the atom as a "plum pudding." That is, it was roughly the same consistency throughout, with negatively-charged electrons scattered about in it like raisins in a pudding.

This is a gorgeous, sweet and spicy plum cake– great as a pudding or with afternoon tea. If you’ve never tried making a cake, this would be a great place to start. Set the oven to 180C/350F/Gas 4.