Serves: 16 | Prep Time: 15 ins | Cook Time: 45 mins | Total Time: 60 mins

Ingredients:

2 1/4 cups all-purpose flour

3/4 cup packed light or dark brown sugar

1/2 tsp kosher slat

2 sticks (1 cup) salted butter, at room temperature

1/4 cup granulated sugar

1 tsp ground cinnamon

2 cups fresh or frozen blueberries or raspberries

1 tsp cornstarch

2 tsp vanilla extract

2 tsp lemon zest

1/2 cup blueberry or raspberry jam

Instructions:

  1. Preheat the oven to 350°F. Line an 8×8″ baking dish with parchment paper.
  2. In a large bowl, beat together the flour, brown sugar, salt, and butter, until a crumbly dough forms. If the dough seems dry, add 1 tbsp water.
  3. Press 1/2 of the dough in the bottom of the prepared baking dish. To the remaining dough, add granulated sugar and cinnamon.
  4. In a bowl, toss together the blueberries, cornstarch, vanilla, and lemon zest. Spoon the berries evenly over the dough. Dollop the jam over the berries. Sprinkle the remaining sugar-cinnamon dough over the berries. Transfer to the oven and bake for 45-50 ins, until the crumble is a light golden brown.
  5. Let cool completely before cutting into the bars. Keep stored in a sealed container for up to 1 week.