It’s rhubarb season again! Growing up my mother always made a strawberry or raspberry rhubarb compote that always hovered on the edge of sweet-tart flavor that was so refreshing on a hot summer day. I wanted to capture that flavor again but in a slightly more complex dessert. It is especially wonderful topped with a little Greek yogurt sweetened with agave syrup or honey or some lightly sweetened whipped cream or vanilla ice cream. The resulting dessert is light, a little bit tart, a little bit sweet, with that distinctive rhubarb flavor and a crumbly, nutty crust.
Since everyone’s taste is a bit different and fruit also varies, you may need to adjust the amount of sugar. I also made dough for a 9-inch shallow tart with enough left-over to make about 4 individual tartlettes if you wish. I made my dough with a mix of butter and Crisco for the shortening, but you could use all Crisco (a solid vegetable shortening) if you wish to keep this vegan.
Rhubarb Strawberry Tart with Walnut Crust
Yield: One 9-inch tart
For the filling
4 cups (about 1 pound) of rhubarb, washed, trimmed and sliced into 1/2-inch pieces
1 cup granulated sugar
Scant 1 cup water
2 teaspoons arrowroot
pinch of Kosher or sea salt
1 cup of sliced strawberries
About 1/4 cup of red currant jelly
For the crust
2 cups finely ground walnuts
1 cup all-purpose unbleached flour
1/2 cup whole wheat flour
1/2 teaspoon Kosher or fine sea salt
3 Tablespoons granulated sugar
12 Tablespoons very cold solid shortening OR 4 Tablespoons of unsalted butter plus 8 Tablespoons of solid shortening
About 4 Tablespoons ice water
For the filling
- In a 2 quart saucepan, dissolve the sugar in the water over medium heat. Add the rhubarb, cover the pan and bring to a simmer, stirring occasionally. Cook until the rhubarb is very tender. This only takes about 3-4 minutes so watch it! Drain the rhubarb, reserving the liquid. Add the sliced strawberries to the hot rhubarb and add the pinch of salt, mixing through gently.
- Return the liquid to the pan and add the arrowroot. Cook over medium heat, stirring occasionally until the liquid clarifies and begins to thicken – about 8 minutes. Remove the mixture from the heat and allow it to cool somewhat. When it has cooled a bit, add only enough (about 1/4 cup) to the rhubarb-strawberry mixture to give it a “sauce” but not so much as to drown the rhubarb or to make it soupy. You will eye-ball this since it is not an exact science. (The arrowroot will thicken the liquid but will not become gloppy, something I HATE in fruit pies and desserts.) Allow the mixture to cool to room temperature. It can also be made ahead and refrigerated until you are ready to use it.
For the crust
- Place all of the dry ingredients in a bowl and add the cold shortening in small cubes. Using your fingers, work the shortening into the dry mixture until you have pieces about the size of peas.
- Add the water and continue working the mixture until you can form the dough into a solid ball. I didn’t need to add any additional water, but if you must, add it in very small amounts at a time. Gather the dough together and flatten into a disk. Wrap in waxed paper or plastic wrap and refrigerate for at least 1 hour. This can also be made ahead and should keep for a couple of days in the fridge.
- When the dough has been chilled, remove it to a well-floured board, counter or pastry cloth and roll it out so that it fits into the bottom of the 9-inch flan pan. I only used about 2/3 of the dough. Place the round into the ungreased pan and using your fingertips or knuckles, carefully push the dough into and up the sides of the pan. While you are doing this, preheat your oven to 375 degrees F. Prick the dough all over with a fork and bake it until well browned, about 30 minutes. Ovens vary, so just keep checking it. You want it to look like this:
- Once the crust has cooled, pour in the rhubarb-strawberry mixture and spread it evenly across the crust.
- Warm the red currant jelly and spoon it over the top of the filling. If the jelly had actual currants in it, pour it through a sieve before putting it over the rhubarb mixture. Spread it evenly with the back of a spoon or a pastry brush. Only use enough to give a nice sheen to the tart.
- Refrigerate the tart in the pan for at least 2 hours to allow everything to set up nicely. This can be made a day ahead. Once the tart has chilled, carefully remove the tart from the fluted flan pan and place on a serving plate. Serve as is, maybe with a sprig of fresh mint for color. I like it with a bit of sweetened Greek yogurt, crème fraîche or whipped cream, but if you wish to keep it vegan, it is also delicious plain. I’m personally not a fan of vegan whipped toppings, but go for it if that is what you like. Just enjoy!