You can take sufficient for the trip but it needs to be in a plastic bag separate from your hand luggage, along with any other other liqids. They may also ask you to taste it at security.
Best checking on the website for your departure airport it should give you all the information you need
You don't need to check the website of individual airlines or airports. The EU (and several other countries) have agreed to common security rules which apply to all departures from the countries participating in the agreement. You can find them on the Department for Transport website: http://www.dft.gov.uk/transportforyou/airtrave l/airportsecurity/requirements