Grape is quite a tricky fruit to turn into desserts. It is juicy, flavorful, sweet and sour, gelatinous in the middle, has a relatively hard / thick skin, and, sometimes, has a couple of terribly bitter seeds. But it is such a delicious fruit that I just have to make an effort to do something.
(By the way, we had decided raisins wouldn't do for grapes)
At first, I thought of making a Huge Grape (something like a Huge OJ, but then I gave up.
I had bought some seedless grapes (what already fixes up the bitter seeds problem). And after thinking and procrastinating for some days, I felt those grapes had to turn into something quickly, before they started to darken and deteriorate!
And what could be better than starting by turning the grapes into a preserve?
Well, ok, I had the preserve. That should give me some more days, but I couldn't hold much longer. Now, think, Renato, think... You can come up with something good, new and that uses grapes preserve.
And then I got to a pie. Actually, a tart. tarts are a specific kind of pie, when there's no top pastry, and, most of the times, contains fruit fillings. But details apart, I "continued" my recipe by baking my crusts, then.