Ingredients:

  • 2 cups (250g) all-purpose flour
  • 1/3 cup (65g) granulated sugar
  • 1 tbsp (12g) baking powder
  • 1/2 tsp (3g) salt
  • 1/2 cup (115g) unsalted butter (cold, cubed)
  • 3/4 cup (180ml) buttermilk (cold)
  • 1 cup (140g) fresh rhubarb (diced into 1/4 inch pieces)
  • 1 large egg (cold, beaten)
  • 1 cup (120g) powdered sugar
  • 2 tbsp (30ml) fresh lemon juice
  • 1 tsp (2g) lemon zest

Instructions:

  1. Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
  2. Dice the rhubarb into uniform 1/4-inch pieces. Pat the pieces dry with a paper towel if they are exceptionally juicy.
  3. Whisk together the all-purpose flour, granulated sugar, baking powder, and salt in a large mixing bowl.
  4. Add the cold, cubed butter to the dry mix. Use a pastry cutter or fork to work the butter in until the mixture resembles coarse crumbs with some pea-sized chunks remaining.
  5. Pour in the cold buttermilk and stir gently with a spatula just until the dough begins to clump.
  6. Gently fold in the diced rhubarb pieces, mixing only until distributed to avoid overworking the gluten.
  7. Turn the dough onto a lightly floured surface and pat it into a circle approximately 1 inch (2.5cm) thick. Cut the circle into 8 equal wedges.
  8. Place the wedges on the baking sheet with 1/4 inch of space between them and brush the tops with the beaten egg.
  9. Bake for 15–18 minutes until the edges are mahogany-colored and the tops are golden-brown.
  10. Whisk together powdered sugar, lemon juice, and lemon zest to create a glaze; apply to the scones once they have cooled slightly.