2 1/4 teaspoons or 1 (1/4-ounce) package active dry yeast
1/4 cup warm water (105–110°F)
2 cups (267 grams) plus 2 tablespoons (18 grams) all-purpose flour, divided
1 cup sugar (220 grams), divided
1/2 teaspoon salt
1/2 cup plain whole-milk yogurt (124 grams) (preferably Greek-style, but I used regular yogurt and it worked just fine) at room temperature
1 large egg, warmed in shell in warm water five minutes
1 1/2 teaspoons grated lemon zest
1 teaspoon pure vanilla extract
1 1/4 sticks (5 ounces or 142 grams) unsalted butter, cut into tablespoons and softened, divided
3/4 pound firm-ripe plums (about 4 small), halved and pitted
Stir together yeast and warm water in mixer bowl and let stand until foamy, about five minutes. (If mixture doesn’t foam, start over with new yeast.)
Add two cups flour, 2/3 cup sugar, salt, yogurt, egg, zest, and vanilla to yeast mixture and mix at medium-low speed 1 minute. Beat in one stick of the butter, one tablespoon at a time, until incorporated. Beat at medium speed until dough is smooth and shiny, about five minutes. (Dough will be very sticky.) Scrape down side of bowl and sprinkle dough with remaining two tablespoons flour. Cover bowl loosely with a kitchen towel or plastic wrap and let dough rise in a draft-free place at warm room temperature until doubled, 1 1/2 to 2 hours.
Spread remaining two tablespoons butter in bottom of an 8- or 9-inch square baking pan and sprinkle with remaining 1/3 cup sugar. Cut each plum half into five or six slices and arrange in one layer in pan. (I had quite a bit of extra plum slices to snack on, but my plums were also giants.)
Stir dough until flour is incorporated, then spread evenly over plums. Loosely cover with buttered plastic wrap, then kitchen towel. Let rise in a draft-free place at warm room temperature until almost doubled, about 1 1/2 hours.
Preheat oven to 375°F with rack in middle. Bake until kuchen is golden-brown and a wooden pick inserted into center comes out clean, 30 to 35 minutes. Cool in pan five minutes, then invert and unmold onto a rack to cool completely.
Serve with additional yogurt, lightly sweetened, or sweetened crème fraîche.
(taken from Smitten Kitchen)
2 cups all-purpose flour
3/4 cup finely chopped walnuts
3/4 cup light brown sugar, lightly packed
1 1/2 sticks cold unsalted butter, diced
1 egg yolk
2 pounds small plums, pitted and cut into sixths lengthwise (quartered if you can find Italian prune plums)
Preheat the oven to 400 degrees. Have a 9 or 10 inch tart pan with a removable bottom or springform pan ready, placed on a baking sheet.
In the bow of a standing mixer, combine the flour, walnuts and brown sugar on low speed. Add the butter and the egg yolk and mix on medium-low speed until the butter is well-incorporated and the mixture is crumbly (it will resemble moist brown sugar).
Put about 2 cups of the crust mixture into the pan and pat it evenly along the bottom and up the sides of the pan (a sturdy measuring cup is a helpful tool for the job). Arrange the plum slices skin side down in a flower pattern, working from the outside in. Scatter the rest of the crumbly crust mixture in an even layer over the top of the fruit.
Bake the tart for 40 to 50 minutes, until it the crust and topping are deeply golden and the fruit juices are bubbling. Cool for at least 10 minutes before transferring to a serving platter.
(taken from Piece Of Cake)