Ingredients

• 2 cups all-purpose flour
• 2 tablespoons white sugar
• 2 teaspoons lemon zest
• 1 pinch salt
• 0.5 cups butter , chilled and diced
• 1 egg
• 1 teaspoon vanilla extract

Instructions

1. 1 Preheat oven to 400 degrees F (200 degrees C). Grease a 9x13 inch baking pan.
2. 2 Start by making the crust. In a medium bowl, stir together the 2 cups flour, 2 tablespoons white sugar, lemon zest and salt. Cut in the 1/2 cup butter until the mixture resembles coarse crumbs. Beat egg and vanilla together; stir into the crumb mixture until a dough forms. Press into the bottom of the prepared pan.
3. 3 Bake for 12 to 15 minutes in the preheated oven, until golden. Remove from oven and set aside to cool slightly.
4. 4 Sprinkle blueberries over the crust. Combine the 1/4 cup sugar and nutmeg; sprinkle over the blueberries. Make the topping: In a medium bowl, cream together the 5 tablespoons butter and brown sugar until smooth. Mix in the flour, so that the mixture is crumbly like streusel. Sprinkle over the blueberry layer.
5. 5 Bake for 20 to 25 minutes in the preheated oven, until browned. Cool and then dust with confectioners' sugar before cutting into bars.

Nutrition per serving