Your tea cakes may need a bit more moisture. If you're cookies are dry and crumbly, whip some butter by hand until soft and then add it into the dough. Try just a tablespoon or two at a time. u003cbr/u003eu003cbr/u003eOr if your cookies seem greasy and are hard to roll into nice balls, add a little bit of flour a tablespoon at a time until your dough is smooth. u003cbr/u003eu003cbr/u003eThese changes can happen based on different brands of butter or humidity changes.