To prepare pie crust:

Place flour, salt, and sugar into food processor and pulse to combine.

Add butter cubes and pulse about 15 times until the butter is combined and the texture is crumbly/sandy.

At this point, slowly drizzle ice water (careful not to add any ice cubes) through the feed tube while pulsing.

Check dough after you've added ¼ cup of ice water. When you pinch the dough between your fingers it should clump together but shouldn't be very wet. Usually in drier months/seasons you'll use the entire ½ cup, but in more humid months you will most likely only need ¼ cup.

Once the dough comes together, dump onto a lightly floured surface, knead a few times, divide dough evenly into two balls and flatten slightly into discs - this makes it easier to roll out later.

Wrap dough balls in plastic, parchment, or any way you like. Refrigerate for 30 minutes or up to a week.

If you refrigerate longer than an hour, make sure to let the dough balls sit at room temperature for about 20-30 minutes before trying to roll.

To prepare fruit filling:

In two separate small bowls, (blueberry in one, strawberry in the other) combine 1/2 cup jam, 1 tablespoon cornstarch, teaspoon vanilla bean paste or extract, and fresh fruit. So you'll have one bowl of blueberry jam with blueberries and one bowl of strawberry jam with diced fresh strawberries.

To prepare pies:

whisk egg with water until completely combined. Set aside.

Line a half sheet pan with parchment. Set aside.

After dough has chilled, place one dough ball onto a well-floured surface.

Roll until you have a roughly 15 X 10 inch rectangle. Don't make yourself crazy, it doesn't have to be perfect. Just make sure to move the dough around and make sure it's well floured underneath the whole time.

Once you have it rolled, trim any rough, uneven edges so you have a neat rectangle.

Slice dough in half lengthwise, then in thirds in the opposite direction. You will have 6 small rectangles.

Divide each rectangle in half to make squares. You will end up with 12 small squares which will make 6 hand pies.

At this point, using a pastry brush, brush egg wash on 6 of the small squares; these will be the bottoms.

Place about a tablespoon of fruit filling in the center of each egg-washed bottom, making sure to leave about a 1/2 inch to 3/4 inch border around the edges.

Cut a slit or any shape you like in the center of each top square and then place gently on top of bottom squares. Press the edges with your fingers and trim any overhang with a sharp knife or pizza cutter so you have neat squares.

Then, using a fork, press evenly and firmly around all edges to really seal them closed.

Place your 6 cute little square hand pies on a parchment lined tray and stash in the refrigerator while you repeat this same process with second dough ball.

You will be able to fit all 12 pies on one half sheet pan with a little space in between. They will not spread at all in the oven. Once they are all assembled, give them about 15 minutes in the refrigerator while you preheat the oven to 425 degrees F.

Once oven is preheated, brush tops of pies with egg wash and sprinkle with coarse sugar.

Bake for 15 minutes, or until tops are golden brown and filling is bubbly.

Serve with ice cream, whipped cream, extra jam and berries, or just enjoy them as they are.