Wednesday's Maths Problem

Give this one a try.

Alex, the alphabet thief, has substituted letters with numbers in the above sum. Can you replace the numbers with letters to reveal the name of his favourite dessert?

9.3.5.3.18.5.1.13 + 6.18.21.9.20 + 19.1.21.3.5 + 19.21.14.4.1.5

Don't forget to post your comment, leaving your name and the initial of your surname, along with the answer. Don't forget to give the European Countries game a shot too on the other post.