Desserts Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. 
Serving Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Strawberry 'n Oat Bars
Buttery oat crumble bars layered with sweet strawberry preserves and a chocolate drizzle.
Contains common allergens
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Good to know
- Ready in under 30 minutes
Matched from this dish's own ingredients and timing. Browse more: 30-minute meals
Instructions
7 steps- 1
Preheat the oven to 400°F (205°C) and grease a 13x9-inch baking pan.
- 2
In a large bowl, beat the 3/4 cup margarine and brown sugar until light and fluffy, 2-3 minutes.
- 3
Add the combined flour, baking soda, and salt and mix well, then stir in the old-fashioned oats, quick-cooking oats, and nuts until crumbly.
- 4
Reserve 1/2 cup of the crumb mixture. Press the remaining mixture firmly onto the bottom of the prepared pan.
- 5
Spread the strawberry preserves evenly over the crust, then sprinkle with the reserved crumb mixture. Bake for 20-25 minutes until golden, then let cool.
- 6
Melt the chocolate chips with the 4 tsp margarine over low heat (or in the microwave in short bursts), stirring until smooth.
- 7
Drizzle the chocolate over the cooled bars, refrigerate for 1 hour to set, then cut into bars.
Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Listahan Family Score™
77/100
Good fit for most families
Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.
Nutrition
per serving190
Calories
3 g
Protein
26 g
Carbs
9 g
Fat
Estimated per serving. Actual values depend on the brands and portions you use.
Listahan cooking guide
Chef notes & practical guide
Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.
Cultural context
Fruit-and-oat bar cookies are a mid-20th century American pantry staple, developed as a way to stretch jam and rolled oats into a portable, lunchbox-friendly treat. The combination of a crumbly oat base, fruit preserve filling, and chocolate drizzle reflects the practical ingenuity of Midwestern home baking, where canned or jarred preserves stood in for fresh fruit year-round. These bars became a fixture of church potlucks and school bake sales across the United States from the 1950s onward.
Listahan note
This version layers a chocolate chip drizzle over the strawberry jam filling, adding a contrasting richness that turns a humble bar cookie into something more compelling than the sum of its parts.
Technique cues
- The oat-to-flour ratio matters for texture: too much flour makes the base dry and floury; too many oats make it crumbly and hard to cut cleanly. Using both old-fashioned and quick oats provides structure from the thick flakes and binding from the fine ones.
- Press the base layer firmly and evenly — a flat-bottomed measuring cup works well — so the bars slice cleanly without crumbling. The top oat layer should be scattered loosely so it bakes into a crunchy, irregular topping.
- Jam filling sets as it cools because the sugar reconcentrates; do not try to slice the bars warm or the jam will ooze. Let the pan cool completely on a rack, then refrigerate for 30 minutes before cutting for the cleanest edges.
Kitchen flow
- Parallel prep
- Preheat the oven and grease the pan while mixing the oat base; the batter comes together quickly and needs to go straight in.
- Make-ahead
- Bars keep well for 3 days at room temperature, making them ideal to bake the day before a potluck or school event; wait to drizzle chocolate until day-of for visual freshness.
- Leftover move
- Crumble leftover bars over yogurt parfaits or pack whole bars into lunchboxes; they hold together well and travel without refrigeration.
- Cleanup rhythm
- Soak the chocolate-melting pan immediately in hot water; wipe the mixing bowl while the base bakes since there is a gap between mixing and the finished product.
Ingredient brief
Role, handling, and swap guidance for each key ingredient.
3/4 cup margarine (softened)
fat binder for the oat crust
Purpose: Fat coats the oat and flour particles to form a cohesive, crumbly base that holds together when pressed but breaks apart pleasantly when eaten.
Handling: Soften at room temperature for 30 minutes; it should be pliable but not oily.
Adaptation: Unsalted butter is a direct 1:1 swap and produces a richer flavor; coconut oil (solid state) works for a dairy-free version.
1 cup packed brown sugar
sweetener and caramel note
Purpose: Brown sugar adds a molasses-tinged sweetness that complements both the fruit jam and the chocolate without being cloying.
Handling: Pack firmly into the cup to ensure correct volume and even sweetness distribution.
Adaptation: Coconut sugar substitutes at 1:1 with a slightly less sweet, more complex result.
1 1/2 cups old-fashioned oats
texture and structure
Purpose: Old-fashioned oats retain their shape during baking, giving the bars a hearty, chewy bite distinct from the finer quick oats.
Handling: No prep needed; use straight from the container.
Adaptation: All quick oats can be used if old-fashioned are unavailable, but the bars will be denser and less textured.
1 cup strawberry preserves
filling and fruit layer
Purpose: Preserves hold up better than fresh fruit or jam during baking because the high sugar content prevents it from becoming watery.
Handling: Stir the preserves before spreading to loosen them for an even layer.
Adaptation: Raspberry, apricot, or blueberry preserves all work; for a less sweet result, use a low-sugar fruit spread.
1 cup semi-sweet chocolate chips
topping drizzle
Purpose: Chocolate adds a bittersweet counterpoint to the sweet jam layer and makes the bars feel more substantial.
Handling: Melt with 4 teaspoons margarine over low heat or in 30-second microwave bursts, stirring between each.
Adaptation: Dark chocolate chips (60-70%) reduce sweetness further; white chocolate chips create a visually striking contrast.
Technique notes
- Spread the jam in an even layer leaving a 1/4-inch border around the edges; jam that touches the pan sides will caramelize and make the bars stick even in a greased pan.
- Let the chocolate drizzle set fully before cutting — about 15 minutes at room temperature or 5 minutes in the refrigerator — to get clean lines rather than smeared edges.
- For a more pronounced nut flavor, toast the chopped nuts in a dry skillet over medium heat for 3-4 minutes, stirring constantly, before adding them to the oat mixture.
Ingredient swaps
- Nut-free direction
- Omit the chopped nuts entirely; the texture of the bars will be slightly softer but otherwise unchanged.
- Vegan direction
- Use vegan butter (such as Earth Balance) and dairy-free chocolate chips (such as Enjoy Life); confirm the preserves contain no gelatin.
- Gluten-free direction
- Use certified gluten-free oats and a 1:1 gluten-free flour blend; the bars may be slightly more crumbly, so chill thoroughly before cutting.
- Lower-sugar option
- Use a no-added-sugar fruit spread for the filling and reduce the brown sugar by a quarter; the bars will be less sweet but still satisfying.
Serve alongside
- vanilla bean ice cream
- fresh strawberry slices with a squeeze of orange juice
- cold glass of whole milk
- lightly sweetened iced tea
- cold brew coffee
- hot chamomile tea
Serving suggestions only — check pairings for your household's allergens.
Storage & reheating
- Store cut bars in an airtight container at room temperature for up to 3 days, separating layers with parchment.
- Refrigerate for up to 1 week; bring to room temperature for 15 minutes before serving for best texture.
- Freeze individually wrapped bars for up to 2 months; thaw at room temperature for 1 hour.
Equipment
- 9x13-inch baking pan
- mixing bowl and hand mixer or wooden spoon
- small saucepan or microwave-safe bowl for melting chocolate
- offset spatula or back of a spoon for spreading jam
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