Pistachio Marzipan Brownie Tart

• Chocolate brownie dough
• 1 1/3 cups all-purpose flour
• 1/3 cup Dutch-process cocoa
• 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 1 cup lightly packed brown sugar
• 3/4 cup unsalted butter, chilled and cubed
• 1 egg, well beaten
• Pistachio marzipan
• 10 ounces shelled pistachios
• 7 ounces granulated sugar
• 2 egg whites
• 1 beaten egg (you will not use it all)

1. Combine flour, cocoa, baking powder, salt and sugar in a food processor and pulse to combine.
2. Add the butter and pulse until it resembles breadcrumbs.
3. Add the beaten egg and run the processor just until it comes together. Divide dough into 2/3 and 1/3 and flatten into a rectangle. Wrap in plastic and refrigerate for one hour. The dough can be made the day before, but will need to sit at room temperature to soften a bit so it doesn't break up when rolling.
4. Peel off the top layer of plastic wrap, then flip it over into the pan, Press it onto the sides of the pan so it doesn't collapse, then remove the plastic wrap.
5. Bring a large pot of water to a boil and blanch the nuts for 30 seconds to one minute. Test by rubbing with your nail to ensure that the reddish skins will come off easily. Drain and rinse with cold water.
6. One by one, squeeze the pistachios to remove the skin. This will ensure your marzipan is bright green. Once skinned, dry on a towel lined baking sheet for at least 3 hours. Do not dry in the oven as the colour may fade.
7. Add egg whites and process until well blended. This is the pistachio marzipan, which can be used for any number of delicious things, and keeps well in the fridge or freezer.dessert
8. Mix the pistachio marzipan with enough of the beaten egg to make a soft, spreadable filling. It will probably take about 1/2 to 3/4 of the egg. Save the rest for glazing the top.

chocolate brownie, flour, dutch, baking powder, salt, brown sugar, unsalted butter, egg, pistachios, sugar, egg whites, egg

Taken from food52.com/recipes/14842-pistachio-marzipan-brownie-tart (may not work)