Blueberry Zucchini Squares

Directions

1. Preheat oven to 350°. Grease a 15x10x1-in. baking pan.
2. In a small bowl, combine zucchini, buttermilk, lemon zest and lemon juice; toss to combine. In a large bowl, cream butter and sugar until light and fluffy, 5-7 minutes. Beat in eggs, 1 at a time. In another bowl, whisk 3-1/4 cups flour, baking soda and salt; gradually add to creamed mixture alternately with zucchini mixture, mixing well after each addition. Toss blueberries with remaining flour; fold into batter.
3. Transfer batter to prepared pan, spreading evenly (pan will be full). Bake 30-35 minutes or until light golden brown and a toothpick inserted in center comes out clean. Cool completely in pan on a wire rack.
4. In a small bowl, mix glaze ingredients until smooth; spread over top. Let stand until set.