RECIPE INDEX & RESOURCES

Monday, June 25, 2018

Blueberry Crumb Bars


The month of June is flying by, making me feel like my perception of time is a bit distorted. With Fourth of July already next week, store retailers will soon begin making us think about the fall and winter or social media posts counting down the number of days to certain holidays. Yikes! What ever happened to savoring the season we are in? Just last week all of the herbs and perennials were finished being planted, the hanging baskets filled with flowy ferns were hung, and candles were put in all of the outdoor lanterns. I don't know about you, but this year, I am going to give summer all of the love and respect it deserves. I refuse to be rushed. Which means, amongst other things, the really cool, comfy hoodie and sweatpants I bought (had to have actually) in Martha's Vineyard will just have to wait to be worn until there is a chilly summer night (fingers crossed we have a couple of those this year). And, if for some reason I can't wait to wear them, I suppose I could always put them on and hangout in our chilly basement. Considering I am usually dripping wet after yoga and running, I doubt seriously you will find me sitting out on my back deck wearing my yet to worn Martha's Vineyard attire. The concept of patience and common sense sometimes creeps into my life every now and then.


If there is one fruit I look forward to eating and baking with every summer, other than peaches, it's blueberries. Big, ripe, sweet, beautiful blueberries. It might be my imagination, but summer blueberries look and taste different than the ones found in the grocery stores during those other 'we won't mention their names' seasons.

Apparently I love blueberries so much there are already sixteen recipes on the blog using them! These Blueberry Crumb Bars will bring that blueberry love number to seventeen. The more the merrier for any and blueberry lovers!


There is nothing fussy about making crumb bars. They pack all of the delicious flavor of a pie but without all the labor of love involved in the making of and rolling out a homemade crust. Although sometimes the urge to make a pie is too strong to resist. However, on those days where you crave the taste of homemade dough and baked fruit, and you don't have the time to make pie dough, make a crumb bar. Hey, make these crumb bars!


These Blueberry Crumb Bars are made with FRESH blueberries. Which means you can only make and enjoy them for as long as the blueberry season lasts where you live. 

The crust for these Blueberry Crumb Bars has a kind of, sort of close resemblance to shortbread. Once baked, it's dense and melt in your mouth sugary perfect. The dough for the crust is made in a (large) food processor. If you don't have one, it can be made in a bowl using a fork or a pastry cutter. Whichever method you use, you want your dough to be slightly moist, yet crumbly.


The juice and zest of one lemon gives the blueberry mixture some tartness, the sugar adds a little sweetness, the cornstarch acts as the thickening agent, and the cinnamon brings some warmth to the flavor of the blueberry layer in these crumb bars. Personally, I love pairing cinnamon with blueberries, but it's a completely optional ingredient. If you are a blueberry crumb bar purist, skip it. 


Two thirds of the dough is pressed into the bottom of a pan lined with parchment paper. To make things easier, I usually weigh out the dough and then divide it out. Once two thirds of the dough is pressed into bottom and slightly up the sides of the pan, the blueberry mixture is spread evenly over it. Rather than drop handfuls of the remaining dough on top of the fruit mixture, I like to squeeze some pieces of the dough together to help create a more textured finish to the crumb bars.

The Blueberry Crumb Bars bake in a preheated 400 degree (F) oven for 40 to 45 minutes or until the top layer is golden brown and the berries underneath are bubbling. Baking the crumb bars at a high heat helps to create a more 'crunchy' base and top. I had vacillated between baking them at 350 degrees (F), 375 degrees (F) and 400 degrees (F). After tasting them, I was so happy I trusted my instincts and went with the 400 degree (F) baking temperature. They came out perfect!

Allow the Blueberry Crumb Bars to cool completely before cutting them. They are actually easier to cut after they spend some time chilling in the refrigerator (at least four hours or up to overnight). 


I would say these Blueberry Crumb Bars are really good at room temperature, but they are GREAT chilled. So if you plan to make them for a picnic or next week's Fourth of July gathering, keep them well wrapped in a cooler. 


One of the best things about these Blueberry Crumb Bars is their versatility. They are great as an afternoon snack or dessert, but they are absolutely perfect for breakfast. Imagine starting one of your treasured summer days with a cup of coffee or tea and one of these heavenly Blueberry Crumb Bars. You may never want summer to come to an end. 

Recipe
Blueberry Crumb Bars
Makes 24 two-inch squares

Ingredients
Crust
3 cups (390 g) all-purpose flour
1 cup (200 g) granulated sugar
1 teaspoon baking powder
1/4 teaspoon kosher salt
1 cup plus 2 Tablespoons unsalted butter, chilled and cubed
1 large egg and 1 large egg yolk
1 teaspoon vanilla
2 Tablespoons granulated sugar (for sprinkling on top of bars before baking)

Filling
4 cups fresh blueberries
1/2 cup (100 g) granulated sugar
4 teaspoons cornstarch
Finely grated zest of one lemon
Juice from one fresh lemon
pinch of kosher salt
1/2 teaspoon cinnamon (optional)

Directions
Filling
1. Stir together the blueberries, sugar, cornstarch, lemon zest, lemon juice, salt, and cinnamon in a medium-sized bowl.

Crust and Assembly
1. Preheat oven to 400 degrees (F). Prepare a 9"x13" baking pan with non-stick spray and parchment paper. Set aside.
2. In a medium sized bowl, whisk together the flour, sugar, baking powder, and kosher salt.
3. Pour dry ingredients into the bowl of a large food processor and add butter. Process until mixture looks crumbly.
4. Add the egg, egg yolk, and vanilla to the flour/butter mixture. Process until the dough starts to come together.
5. Press two-thirds of the dough into the bottom and slightly up the sides of the prepared pan.
6. Pour the blueberry mixture over the dough layer.
7. Sprinkle the remaining one-third of dough over the top of the berries. Note: Squeeze small amounts of the dough as you sprinkled to create a bumpy textured finish to the bars.
8. Sprinkle 2 Tablespoons of granulated sugar over the top.
9. Bake for 40-45 minutes or until the top crust is golden brown and berries look thickened.
10. Place baking pan on a cooling rack. Let the bars cool completely in the pan. Cover and then refrigerate for at least 4 hours or overnight.
11. Remove the blueberry crumb bar slab from the pan. Cut into either squares or bars in desired size. 
12. Serve bars chilled. Store any uneaten bars covered in the refrigerator.

Notes: (1) If you don't want to make the full 9"x13" pan version, cut the recipe in half and use an 8"x8" baking pan. Baking time will be reduced to 30-35 minutes for this sized pan. (2) You can cut the bars after they have cooled to room temperature completely, but they are so much easier to cut after they have chilled.

Azaleas blooming in Little Compton, RI (June 2018)