- 2 cups shredded zucchini (do not pack)
- 1/2 cup buttermilk
- 1 tablespoon grated lemon peel
- 3 tablespoons lemon juice
- 1 cup butter, softened
- 2-1/2 cups sugar
- 2 large eggs
- 3-1/4 cups plus 2 tablespoons all-purpose flour, divided
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 cups fresh or frozen blueberries
- 2 cups confectioners' sugar
- 1/4 cup buttermilk
- 1 tablespoon grated lemon peel
- 2 teaspoons lemon juice
- 1/8 teaspoon salt
- Preheat oven to 350°. Grease a 15x10x1-in. baking pan.
- In a small bowl, combine zucchini, buttermilk, lemon peel and lemon juice; toss to combine. In a large bowl, cream butter and sugar until light and fluffy. Beat in eggs, one 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.
- 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.
- In a small bowl, mix glaze ingredients until smooth; spread over top. Let stand until set. Yield: 2 dozen.
Reviews forBlueberry Zucchini Squares
"Excellent! Used an 11x17 pan for 30 minutes."
"The cake and glaze were great. The pan size is VERY wrong. I will be cleaning my oven for the next few hours. When it is "Test Kitchen Approved" I thought that also would mean the size of the pan - wish I had read the reviews! I will make this again, but in a 9x13 pan and a longer cook time. I hope by giving this recipe 1 star it will help anyone trying this recipe for the first time."
"Just baked this recipe. As others said, I used a 11X17 pan and it baked perfectly in 30 minutes. I needed to make it gluten free so I used gluten free flour, and I reduced the sugar to 2 cups. It is delicious! Will make again! I have to make something for our cafe at church tomorrow morning and this is perfect!"
"Excellent way to use up zucchini & sneak in superfoods. Your kids will have no idea they're eating healthy! These are sooo moist! The only reason I rated it a 4 instead of 5 is that the glaze was very runny. It has good flavor though. Next time i make this i'll make sure to thicken the glaze or just leave it off."
"I followed the square recipe exactly as written except I used only a teaspoon of lemon peel. as my husband doesn't care for it. I made my own glaze as I wasn't sure I wanted buttermilk in my glaze and the lemon peel was present again. I used my 11x17 inch pan and the batter fit very well rising right to the top.If a smaller jelly roll style pan was used I think there would be too much batter.My squares were baked perfectly in 30 minutes and I put my glaze on while still warm. Even though I carefully coated the berries in flour as directed they remained close to the bottom. Not a big problem for me as it is a shallow pan anyway.The squares were tender and moist with a cake like texture - more cake than brownie consistency and a slight lemon tang from the glaze that we really enjoyed."
"I peeled my zucchini, just a family preference. My berries were huge and heavy, and sunk to the bottom despite being tossed with the flour. The recipe calls for a jelly roll pan, but I don't have one. I baked mine in a 13x9 pan for 55 minutes. I put on the glaze while it was still warm. I let them cool completely, then cut them into squares."
"This was wonderful! I'm not much of a baker was a little worried about trying this recipe. It wasn't difficult at all. It came out light and fluffy (about 1 1/4" high in an 11x17" pan.) I used 2 cups sugar and no glaze and it was plenty sweet. I also used 1 cup of whole wheat flour and the rest white. Next time I'm going to add a little more lemon zest and maybe a little more zucchini, they're still growing! Thanks so much!"
"Made it for several family gatherings and it went over big. Loved the recipe and didn't change a thing. The lemon is very refreshing."
"This was amazingly delicious. I made it in a cake pan rather than a bar pan and I did not use the glaze. I still cut it into squares (which were thick & moist) and froze it. I used it for breakfast meals for myself and my children. I am getting ready to make it once again because we all loved it so much."