• Prep 30 mins
  • Total 1h 40 mins
  • Medium
  • Serves 12

TIP: Can use all-purpose flour instead of rye flour if desired. Can also substitute all-purpose gluten-free flour (1:1) in recipe.

Cooking mode

Step-by-step instruction without your screen going to sleep

  • 2 1/2 cups water, for steaming, divided
  • Nonstick cooking spray
  • 1/2 cup unsalted butter, softened
  • 1 1/4 cups granulated sugar, divided
  • 1 teaspoon vanilla extract
  • 11 tablespoons all-purpose flour, divided
  • 9 tablespoons rye flour
  • 1/2 teaspoon kosher salt, divided
  • 2 large eggs, room temperature
  • 3 large egg yolks, room temperature
  • 1 teaspoon lemon zest
  • 1/2 cup fresh lemon juice, strained

TOPPINGS (optional)

  • Powdered sugar, as desired
  • Sumac, as desired
  • Step 1

    2 1/2 cups water, for steaming, divided

  • Step 2

    To make crust, add the butter, 1/4 cup sugar, and vanilla in a medium bowl. Mix until light and fluffy. Add 9 tablespoons all-purpose flour, rye flour, and 1/4 teaspoon salt. Mix until well combined. Transfer mixture into prepared pan, press into an even layer, and use a fork to poke the surface of the dough.

  • Step 3

    Place the pan on the bottom layer of the Deluxe Reversible Rack in the lower position, then place the rack in the pot.

  • Step 4

    Close the lid and move slider to STEAMCRISP. Select STEAM & BAKE, set temperature to 300°F, and set time to 15 minutes. Press START/STOP to begin cooking (PrE will display for approx. 10 minutes as the unit steams, then the timer will start counting down).

  • Step 5

    While crust is baking, prepare the lemon filling by mixing 1 cup sugar, remaining 2 tablespoons all-purpose flour, and remaining 1/4 teaspoon salt in a medium bowl. Whisk in the eggs, egg yolks, lemon zest, and lemon juice until well combined.

  • Step 6

    When cooking of crust is complete, remove the pan and pour the lemon filling into the hot crust.

  • Step 7

    Add 2 cups water to the pot and place the pan on the rack in the pot.

  • Step 8

    Close the lid and keep slider on STEAMCRISP. Select STEAM & BAKE, set temperature to 280°, and set time to 30 minutes. Press START/STOP to begin cooking (PrE will display for approx. 15 minutes, then the timer will start counting down).

  • Step 9

    When cooking is complete, the filling will be set and will only slightly jiggle when pan is shaken. Remove rack with pan and let cool for 1 hour. Place cooled pan in refrigerator and chill for 1 additional hour.

  • Step 10

    Before serving, dust bars with powdered sugar and a sprinkle of sumac, if desired.