This morning I went to the local farmer's market full of eager anticipation for all  the best of mid-summer's bounty.  It was a trip well-rewarded.  Apart from the typical lettuces, beans, peas, and potatoes, I also came away with raspberries, which are easily my favorite berry, and gooseberries, which I had never tried before.
I was not really sure what to do with the berries, so I enquired while paying and the lady serving was so kind as to give me a few suggestions.  One was to pop them whole into the mouth like a blueberry, and the other was to make jam.  She also instructed me to remove the stem end and the fuzzy little flower end before using them.  I have never made jam, and today was not the day that I cared to undertake a first attempt.  I tried to pop one whole into my mouth, expecting a burst of sweet juiciness.  WOW... was I in for a shock.  These pretty, little glossy berries are not sweet, and really not all that juicy.  What they are is very sour, and quite like a black currant when you amp up the tart factor by about 100%.   It seemed I would need to look for other ways to use these berries.
I enquired of a friend whether it was possibly to make them into a tart.  She assured me that it was possible, and even kindly provided a couple recipes (which sorry, to say, I didn't use this time).    Armed with the new knowledge though, I did a quick google search to see if it was possible to use the berries in my favorite free-form, one crust, gallette-style tart.  It is possible.... with the addition of MUCH sugar.
Now, to go back quickly to something that I should have paid attention to while I was buying the berries... removing the stem and flower end of the berry is an incredibly tedious task, and one which I am not eager to undertake again anytime soon.
Added to the quart of berries that I purchases, I added roughly 1/4 cup white sugar and about 2 tablespoons of brown sugar.  I used a standard sweet pastry crust, and loaded the berries in and folded up the sides.  I sprinkled organic cane sugar over the crust for a lovely crunchy caramelization.  Into the oven at 350 degrees for about 40 minutes.  As it turns out, the seemingly non-juicy berries become very juicy as they cook, and my pie runneth over.  Keep a pan for beneath the baking pan to catch the juices.
Overall, the tart was really delicious, although we did have a few berries that were perhaps, a little under-ripe.   These proved to be quite entertaining, as the unexpected tartness would elicit the best pucker face from husband.

Come to think of it, maybe I should also have paid more heed when the woman at the counter, congratulated me on my courage to try new things.  There may have been a not so subtle warning there.