Ingredients:

  • 1 cup (125g) all-purpose flour
  • 1/2 cup (100g) light brown sugar, packed
  • 1 tbsp (8g) ground cinnamon
  • 1/4 tsp (1.5g) sea salt
  • 1/2 cup (113g) unsalted butter, melted
  • 2 cups (250g) all-purpose flour
  • 1 cup (200g) granulated sugar
  • 2 tsp (10g) baking powder
  • 1/2 tsp (3g) salt
  • 1 cup (245g) plain Greek yogurt, room temperature
  • 1/2 cup (120ml) neutral oil
  • 2 large eggs, room temperature
  • 1 tsp (5ml) vanilla extract

Instructions:

  1. Preheat oven to 350°F (175°C). Grease a 9x5 inch loaf pan and line it with parchment paper.
  2. In a medium bowl, whisk together 1 cup flour, brown sugar, cinnamon, and 1/4 tsp salt. Stir in melted butter with a fork until a chunky, pebble-like texture forms. Divide the mixture into two equal portions.
  3. In a large bowl, whisk together 2 cups flour, granulated sugar, baking powder, and 1/2 tsp salt.
  4. In a separate bowl, whisk Greek yogurt, oil, eggs, and vanilla until smooth.
  5. Gently fold the wet ingredients into the dry ingredients using a spatula, stirring only until the last streaks of flour disappear.
  6. Sprinkle the first portion of the crumb mixture evenly across the bottom of the prepared pan, pressing down slightly.
  7. Pour the yogurt batter over the crumbs, smoothing the top, and scatter the remaining crumb mixture over the batter.
  8. Bake for 45-55 minutes until the streusel is deep golden-brown and the cake pulls away from the edges. Allow to cool in the pan for 30 minutes before removing.