Jammy Fruit Bars Recipe

A perfect vehicle for market-fresh blueberries, cherries, and peaches in season, or your favorite jam during those times in between.

Top down view of jammy fruit bar squares.

Serious Eats / Vicky Wasik

Why It Works

  • The soft dough can be compressed into a crust, and crumbled like a streusel, making for an easy, all-in-one recipe.
  • Salt helps tame the sweetness of jam and bring out the flavor of fresh fruit.
  • Lemon juice adds nuance and complexity to both fresh fruit and jam.

What is Hjónabandssæla?

During my visit to Iceland, I became slightly obsessed with hjónabandssæla, a jammy fruit bar that seemed to turn up in every coffee shop I popped into. Perhaps owing to that casual cafe setting, the versions I encountered were very low-key affairs, much like a bar cookie or coffee cake, although fancier versions abound if you search online.

As my encounters with this pastry have been so limited and fleeting (a half dozen samples over the course of a week), my interest in this Nordic treat has less to do with authenticity than finding a culinary touchstone—a bite of something sweet to remind me of a lovely trip. And besides, what does an American pastry chef living in Kentucky have to say about true Icelandic cuisine?

Which is to say, while these fruit bars are inspired by my experience with hjónabandssæla, they're rooted in my own understanding of American streusel bars, crumb cakes, and bar cookies. I take something of an impressionist approach to flavor, rather than anything even approaching hyperrealism. So for me, copycat recipes (whether a homemade Oreo or a Levain-style chocolate chip cookie) avoid literal replication of an existing formula and focus on re-creating an experience.

Close up view of a jammy fruit bar square.

Serious Eats / Vicky Wasik

These bar cookies are no exception, although you don't have to have fond memories of Icelandic desserts to appreciate them. They're rich and hearty, loaded with butter and oatmeal, but tempered by the zip of fresh fruit or jam and a pinch of spice. The hjónabandssæla I tasted were, without exception, blueberry, but I've been reliably informed that rhubarb jam is by far the more common filling.

Happily, these bar cookies are easy to customize with whatever fresh fruit or jam you like!

Top down view of jammy fruit bar squares on a marble surface.

Serious Eats / Vicky Wasik

How to Make Icelandic-Inspired Jammy Fruit Bars

The recipe starts with a wonderfully easy and versatile dough that serves as both the crust and streusel topping for the bars—a mixture of rolled oats, all-purpose flour, light brown sugar, baking powder, baking soda, salt, and cinnamon, along with unsalted butter and an egg. Plus fruit, of course, whether something fresh from the farmers market or a grocery store, or in the form of jam, marmalade, or jelly (more on that in a bit).

Ingredients for the blueberry oatmeal bar cookies.

Serious Eats / Vicky Wasik

The first step is to thoroughly homogenize all of the dry ingredients, a mix that can be bagged and held in the pantry if you're looking for a make-ahead step. Next, add the cold, cubed butter and work it into the dough. I start by tossing the cubes in the flour, then smashing each one into a flat sheet. From there, I keep smashing and rubbing until the butter almost disappears into the dry mix, with a few big flakes visible here and there. The final step is to crack in an egg, and stir to moisten the dough.

Transfer 16 ounces (455g), or about two-thirds of the dough, to a parchment-lined 8-inch square anodized aluminum pan *, and gently press into an even layer. This step is a bit of a balancing act; if the dough isn't pressed into a cohesive sheet, the finished bars won't have much structure and may crumble apart (no problem, just grab a fork), but if the dough is excessively compressed, the bottom layer will be thin and dense. Ultimately, the idea is to be firm but gentle, avoiding both aggressive smashing and timid patting.

*If you don't have a pan this size, the most elegant solution would be to make a double batch in a 9- by 13-inch aluminum pan instead. This new size will preserve the proportions of the original bars, keeping them nice and thick. This recipe can be adjusted to fit whatever pan you have, see our guide to scaling cakes, but all but whole number increments will result in fractions of an egg, which many bakers find troublesome.

Finally, scatter a layer of fresh fruit over the bottom layer. There's a lot of wiggle room for using different types of fruit, but do stick to those that are relatively soft and juicy, such as pitted cherries, peeled and diced peaches, or whole raspberries, rather than comparatively firm or dry fruits such as apple or banana.

Season the fruit with a squeeze of lemon and a pinch of salt; this will bring out the best in the fruit's own flavor, and temper its natural sweetness. Some fruits may require more or less than others, depending on how sweet or mild they may be, but in virtually all instances a bit of lemon and salt will improve the fruit flavor considerably.

Finally, crumble the remaining dough over the fruit and bake at 350°F (180°C) until firm to the touch and golden brown. The timing of this step can vary considerably, depending on the exact distribution of dough and streusel, as well as the variable moisture content and exposed surface area of the fruit, whether whole blackberries or sliced strawberries.

Strawberry oatmeal bar in a square pan.

Serious Eats / Vicky Wasik

The fresh fruit filling can also be replaced with jam, jelly, or marmalade instead, then topped with streusel and baked the same way. It may seem like the jam layer is quite thin, but because it's cooked down with sugar, this scant amount will pack quite a punch! As with the fresh fruit layer, season the jam with a bit of lemon juice and salt before topping with streusel.

A collage: spreading jam over the fruit bar dough and sprinkling streusel topping.

Serious Eats / Vicky Wasik

Cooling, Cutting, and Serving

No matter if you're using fresh fruit or jam, do give the bars plenty of time to cool before portioning them out, as the hot fruit or jam will make the bars quite squishy and soft. The bars will only develop structure after cooling to room temperature, so be patient!

Lining the pan with parchment will not only make clean-up a lot easier by keeping jammy residue off the pan, it will make the bar cookies easy to lift out and transfer to a cutting board. This will allow for cleaner cuts, and will protect the bottom of your pan from the nicks and scratches that result from trying to cut bar cookies in the pan.

I don't particularly consider these fruit bars to be a proper dessert, although they certainly could be if served à la mode or with a dollop of whipped cream (I've done so before on my Instagram). Rather, I think of them as a teacake or coffee cake, something I can make a day in advance to serve as a mid-afternoon snack with friends or family.

Oatmeal bar cookies with fresh blueberries on a plate.

Serious Eats / Vicky Wasik

That said, my favorite way to serve them is for breakfast, with a steaming mug of coffee to offset their fruity sweetness. Something about the combination of rolled oats and fruit just gives me major brunch vibes, and they're certainly no richer or sweeter than a muffin or a cinnamon bun, so why not?

Close up view of a fruit bar square.

Serious Eats / Vicky Wasik

Whether you've got a beautiful haul of seasonal fruit from the farmers market, a jar of store-bought jam, or a pint of homemade jelly from last season, these bar cookies are a fun and easy way to make the most of what you have on hand—even if that doesn't include a drop of Nordic nostalgia.

May 2019

Recipe Facts

4.7

(24)

Active: About 15 mins
Total: 90 mins
Serves: 9 servings

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Ingredients

For the Dough:

  • 4 1/2 ounces old fashioned rolled oats, not quick cooking, instant, or thick cut (about 1 1/3 cups; 128g)

  • 4 1/2 ounces all-purpose flour (about 1 cup, spooned; 128g)

  • 6 ounces light brown sugar (about 3/4 cup, firmly packed; 170g)

  • 1 teaspoon baking powder

  • 1 teaspoon (4g) Diamond Crystal kosher salt, plus more for sprinkling; for table salt, use about half as much by volume or the same weight, plus additional salt for sprinkling

  • 1/4 teaspoon baking soda

  • 1/4 teaspoon ground cinnamon

  • 6 ounces cold, unsalted butter, cut into 1/2-inch cubes (about 3/4 cup; 170g)

  • 1 large egg, straight from the fridge (about 1 3/4 ounces; 50g)

For the Filling:

  • 8 ounces jam (volume will vary; 225g) or 12 ounces "juicy" fruit, such as whole blueberries or raspberries, pitted cherries, sliced strawberries, or peeled and diced peaches (volume will vary; 340g)

  • Lemon juice, to taste

Directions

  1. Getting Ready: Adjust oven rack to lower-middle position and preheat to 350°F (180°C). Line an 8- by 2-inch square, anodized aluminum pan with two long strips of parchment to cover the bottom and sides, creasing as needed to ensure a secure fit.

  2. Make the Dough: In a large bowl, combine rolled oats, all-purpose flour, brown sugar, baking powder, salt, baking soda, and cinnamon, then mix until homogenous. If needed, this dry mix can be bagged and stored at cool room temperature up until the date stamped on the carton of oatmeal. Add butter, toss to break up the pieces, and smash each cube flat. Continue smashing and rubbing until the butter has mostly disappeared into a clumpy, streusel-like mix. This can also be done on low speed in the bowl of a stand mixer fitted with a paddle attachment, but take care not to overdo it. Add egg and stir with a flexible spatula until well incorporated to form a soft dough.

    A collage: adding and folding butter into flour/oatmeal mixture; adding an egg; combining all of the ingredients to form a soft dough.
  3. Making the Bars: Scatter 16 ounces (about two-thirds of the mixture; 455g) into the bottom of the prepared cake pan, and gently press into an even layer. The idea is to encourage the pieces into a single sheet, without compressing the dough with excessive force.

  4. Spread the jam or scatter the fruit into an even layer over the dough. Sprinkle with salt and a squeeze of fresh lemon juice, to bring balance to the fruit or jam. The amount needed will vary for both, depending on the type of fruit and its sweetness/acidity, with sweeter, milder fruits or jams requiring a bit of a heavy hand, and mellow, acidic fruits needing less. That said, virtually all fruits and jams will benefit from at least a small sprinkling of salt and squeeze of lemon, so don't skip this step altogether.

    A collage: pressing fruit bar dough into the pan and adding blueberry on top.
  5. Sprinkle the remaining dough on top of the jam or fruit layer, crumbling it like streusel. Bake until the "cake" is puffed, firm, and golden brown, about 45 minutes, although the exact timing will vary depending on the moisture content of the jam or fruit.

    A collage: adding lemon juice and a pinch of salt on top of the fruit for fruit bar; sprinkling streusel on top; a fully baked fruit bar.
  6. Cool directly in the pan until the bars are room temperature, then loosen the two exposed sides from the pan with a dull knife. Gently tug at the parchment to loosen the bars, then transfer to a cutting board, and cut into pieces as desired. Serve with a dollop of whipped cream, or plain as a bar cookie. Wrapped tightly in plastic, the bar cookies will keep 3 or 4 days at cool room temperature.

    Cooled fruit bar on a cutting board, ready to be portioned.

Special Equipment

8- by 2-inch square, anodized aluminum pan

Notes

This recipe works well with all sorts of jams and jelly, whether store-bought or homemade; in Iceland, rhubarb and blueberries are most traditional, but whatever type you love should work well. For fresh fruit, stick to sweet and "juicy" produce, such as berries, cherries, and peaches, or even pitted Concord grapes.

Make-Ahead and Storage

Wrapped tightly in plastic, the bar cookies will keep three or four days at cool room temperature.

Nutrition Facts (per serving)
343 Calories
17g Fat
45g Carbs
5g Protein
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Nutrition Facts
Servings: 9
Amount per serving
Calories 343
% Daily Value*
Total Fat 17g 22%
Saturated Fat 10g 50%
Cholesterol 61mg 20%
Sodium 278mg 12%
Total Carbohydrate 45g 16%
Dietary Fiber 3g 10%
Total Sugars 22g
Protein 5g
Vitamin C 4mg 19%
Calcium 66mg 5%
Iron 2mg 9%
Potassium 134mg 3%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)