Name: Blueberry Poppy Seed Squares
Yield: serves 16
Ingredients: dough; 2 sticks (1/2 pound or 16 tablespoons) unsalted butter at room temperature; 1/2 cup granulated sugar; 2 1/2 cups all purpose flour; 1/2 tsp salt; streusel; 4 tbsp unsalted butter, at room temperature; 1/2 cup all purpose flour; 1/4 cup granulated sugar; 1/4 tsp salt; filling; 3/4 cup granulated sugar; 2 pints (4 cups) fresh blueberries, about 18 ounces; 2 Tbsp lemon juice; 2 Tbsp cornstarch; 1/2 tsp cinnamon; poppy seed layer; 1 1/2 cups ground poppy seeds (grind them in a coffee grinder or high speed blender like Vitamix) If you can't grind them, use them whole.; 1/2 cup heavy cream