Step 1

For the Broth: Sprinkle lamb evenly on all sides with 1 teaspoon salt and place on wire rack set in rimmed baking sheet. Let stand at room temperature for at least 30 minutes and up to 2 hours.

Step 2

Combine lamb, chicken stock, garlic, tomato paste, and remaining 1/2 teaspoon salt in a pressure cooker, and stir to combine. Seal pressure cooker, and bring to high pressure over medium-high heat, if using a stovetop model, or by setting to pressure-cooker mode on an electric multi-cooker. Cook at high pressure for 40 minutes, adjusting heat as needed to maintain high pressure (if using a stovetop pressure cooker; electric ones will automatically regulate the heat and pressure level).

Step 3

Depressurize cooker using the quick-release method, then carefully remove lid, allowing steam to escape away from you. Strain broth through fine-mesh strainer into clean heatproof container, pressing on solids to extract as much liquid as possible; add water as needed to yield a total 3 cups (700ml) broth. Season with additional salt to taste. Transfer lamb to cutting board and set broth aside to cool to room temperature. When broth has cooled, cover and refrigerate until ready to use. When lamb is cool enough to handle, separate meat from bones in large pieces; set meat aside and discard bones.

Step 4

For the Dough: Place flour and salt in food processor bowl and pulse twice to combine. Add butter and process until fully incorporated, 10 to 20 seconds. Add water (adding extra 1 teaspoon (5ml) water if rolling dough by hand) and egg yolk and process until dough ball starts to form and mixture looks pebbly, about 30 seconds. Transfer dough to lightly floured counter; return food processor bowl to base, but don't clean it. Knead dough until uniform in texture (dough will remain slightly rough in texture), 15 to 30 seconds. Form dough into a 4-inch disk, wrap tightly in plastic, and set aside to rest on countertop for at least 30 minutes and up to 2 hours (or transfer to refrigerator for up to 24 hours).

Step 5

For the Manti Filling: Meanwhile, in now-empty food processor, place onion, garlic, parsley, paprika, allspice, Aleppo pepper, salt, and pepper and process until smooth, scraping down sides of bowl as needed, about 15 seconds. Break up ground lamb into small pieces, add to food processor, and pulse to combine, 8 to 10 one-second pulses (do not over-process, as this will make the filling chewy and bouncy rather than tender). Transfer filling to an airtight container and refrigerate until needed (mixture may be made up to 24 hours in advance).

Step 6

To Roll the Dough and Bake Manti: Set oven rack to middle position and preheat oven to 350°F (177°C). Using a pastry brush, coat 2 rimmed baking sheets with 1 tablespoon (15ml) olive oil each and set aside.

Step 7

Dust countertop lightly with flour. Unwrap rested dough and cut into quarters. Set one quarter on work surface and re-wrap remaining dough. Using rolling pin and fingers, flatten and stretch dough to 5- by 4-inch oval that is 1/4 inch thick. If using pasta roller, proceed to step If rolling dough by hand, roll dough into 12- x 8 1/16-inch rectangle using a rolling pin. Cut dough in half lengthwise to yield two 12- x 4-inch sheets. Cut each strip into seven 1 3/4-inch-wide strips. Divide each strip in half crosswise into two 1 1/4-inch squares; each sheet of dough should yield at least 28 squares. Proceed to step 13.

Step 8

Set pasta roller to widest setting and pass dough 3 times through the machine lengthwise at this setting.

Step 9

Place dough on lightly floured work surface. Fold both ends in so that they meet at the center of the dough, and then fold the dough in half where the end points meet, trying not to incorporate too much air into the folds. Using rolling pin and fingers, flatten and stretch dough to 6- by 3-inch rectangle that is 1/4 inch thick. Pass through the rollers lengthwise 3 additional times.

Step 10

Narrow the setting by 1 notch and pass dough 3 times through the machine at this setting.

Step 11

Narrow the setting by 1 notch and pass dough twice through the machine at this setting. Continue passing the dough through the rollers, reducing the thickness by 1 setting each time until it measures about 24 x 3 x 1/16 inches (setting 5 on a Marcato Atlas pasta roller). It should now be very delicate and elastic to the touch, and slightly translucent.

Step 12

Transfer rolled dough to lightly floured work surface, and lightly coat both sides of dough with flour to prevent sticking. Using pastry wheel, pizza cutter, or sharp knife, cut sheet crosswise into fourteen 1 3/4-inch-wide strips. Divide each strip in half crosswise into two 1 1/2- by 1 3/4-inch strips; each sheet of dough should yield at least 28 strips.

Step 13

Using 1/8 teaspoon measuring spoon, place scant 1/4 teaspoon ball of meat filling in center of each strip of dough.

Step 14

Working one at a time, using lightly floured hands and fingertips, lift strip of dough in hands and fold in half loosely over filling lengthwise. Pinch sides of dough together, working your way toward filling to enclose it (do not seal dough across top and do not push ball of filling up and out of dumpling). Place manti on lightly floured counter and then gently pinch ends between fingers to form flat-bottomed, stable canoe shape. Transfer to prepared baking sheet and repeat with remaining strips of dough. Using fingertips, gently press meat filling into manti to make them flush with top of dough.

Step 15

Repeat steps 7 through 14 with another quarter of dough (if rolling by hand, repeat steps 7, 13, and 14).

Step 16

Place baking sheet of manti in oven and bake until lightly and evenly golden brown, 25 to 30 minutes. Transfer baking sheet to wire rack and allow to cool to room temperature.

Step 17

While first tray of manti bakes, repeat steps 7 through 14 with remaining 2 quarters of dough, followed by step 16 to bake and cool remaining manti (cooled manti can be transferred to zipper lock freezer bags and frozen for up to 3 weeks). Once all manti are baked, adjust oven racks so that one is in upper-middle position, the other is in lower-middle position, and lower oven temperature to 325°F (165°C).

Step 18

For the Yogurt-Garlic Sauce: Using a fork, mash garlic and salt to a rough paste on cutting board. Combine yogurt and garlic mixture in small bowl and whisk until evenly combined. Cover and refrigerate until needed.

Step 19

To Finish and Serve Manti: In large saucepan, bring broth to boil over high heat. Add reserved lamb pieces, reduce heat to medium-low, and cover.

Step 20

Return both baking sheets of manti to oven and bake until manti are golden brown and heated through, 15 to 20 minutes (20 to 25 if starting with frozen manti).

Step 21

Add about 1/2 cup (120ml) hot broth to individual serving bowls. Place 15 to 20 manti in broth and top with 3 to 4 tablespoons yogurt-garlic sauce. Sprinkle with 1/4 teaspoon of Aleppo pepper and sumac each. Serve immediately. (Lamb pieces reheated in the broth are meant to be served as a treat with any remaining manti.)