Bake a Peanut Butter and Jam Bar
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Make peanut butter and jam bars by mixing dough, spreading jam, assembling layers, and baking with adult supervision while learning measuring, teamwork, and oven skills.

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Step-by-step guide to bake a Peanut Butter and Jam Bar

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What you need
Adult supervision required, all-purpose flour, baking pan and parchment paper, butter, cooling rack, granulated sugar, jam, knife, measuring cups and spoons, mixing bowl and spoon, oven and oven mitts, peanut butter, pinch of salt

Step 1

Wash your hands with soap and water for 20 seconds so everything stays clean.

Step 2

Ask an adult to preheat the oven to 350°F (175°C).

Step 3

Line the baking pan with parchment paper or spray it with nonstick spray so the bars won’t stick.

Step 4

Measure and add 1 cup softened butter 1 cup peanut butter and 1/2 cup sugar into the mixing bowl.

Step 5

Stir the butter peanut butter and sugar together until the mixture is smooth and creamy.

Step 6

Add 2 cups all-purpose flour and a pinch of salt to the bowl.

Step 7

Stir the flour and salt into the bowl until a soft dough forms.

Step 8

Press half of the dough evenly into the prepared pan to make a flat base.

Step 9

Spread 1/2 cup jam evenly over the dough base using the back of a spoon.

Step 10

Crumble the remaining dough over the jam so it mostly covers the top.

Step 11

Ask an adult to put the pan in the oven and bake for 20 to 25 minutes until the top is golden.

Step 12

Ask an adult to take the hot pan out of the oven and set it on a cooling rack to cool for at least 20 minutes.

Step 13

Once cool, use a knife to cut the baked slab into bars.

Step 14

Pick up a cooled bar and taste a small bite to celebrate your baking success.

Step 15

Share your finished peanut butter and jam bars on DIY.org.

Final steps

You're almost there! Complete all the steps, bring your creation to life, post it, and conquer the challenge!

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Help!?

I don't have parchment paper or nonstick spray—what can I use so the bars don't stick?

If you don't have parchment paper or nonstick spray, thoroughly grease the pan with softened butter and dust it lightly with flour or line it with a sheet of lightly greased aluminum foil to prevent sticking.

The dough is too crumbly and won't press into the pan—how can I fix it?

If the dough is too crumbly when you try to press half into the prepared pan, stir in 1 tablespoon of milk or an extra teaspoon of softened butter at a time until the dough holds together and can be pressed evenly.

How can I adapt this activity for younger or older kids?

For younger kids (about 3–6), have an adult do the oven and measuring while the child stirs the butter/peanut butter/sugar and spreads the jam, and for older kids (about 10+), let them measure, mix the dough, press into the pan, and crumble the top while an adult only handles preheating, baking, and removing the hot pan.

How can we extend or personalize the peanut butter and jam bars?

To personalize the bars, fold 1/2 cup chocolate chips or chopped nuts into the dough before pressing, try different jams for flavor, sprinkle a little coarse sugar on top before baking for crunch, then cut the cooled slab into bars and share photos on DIY.org.

Watch videos on how to bake a Peanut Butter and Jam Bar

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Facts about baking for kids

📏 Baking is a great way to learn measuring: teaspoons, tablespoons, and cups are the recipe tools that make treats turn out right.

🍪 Bar cookies (like peanut butter and jam bars) are baked in a pan and then sliced, which makes them quick to share at parties.

🍓 Jam was invented to preserve fruit — cooking fruit with sugar helps it last for months when sealed properly.

🔥 Ovens use hot air to change dough into golden bars — with an adult, kids can watch how time and temperature transform texture and color.

🥜 Peanut butter is packed with protein and healthy fats, making it a tasty, filling ingredient for snacks and baking.

How do you make peanut butter and jam bars?

Preheat the oven to about 350°F (175°C). With adult help, mix dry ingredients, cut in butter until crumbly, then add an egg and peanut butter to form a dough. Press half of the dough into a lined baking pan, spread jam evenly over the base, then crumble or press the remaining dough on top. Bake until golden, cool completely, then cut into bars. Always supervise children around the oven and hot pans.

What materials do I need for peanut butter and jam bars?

Ingredients: all-purpose flour, sugar, butter, egg (or substitute), peanut butter (or sunflower seed butter for allergies), choice of jam, baking powder or soda, pinch of salt and optional vanilla. Tools: mixing bowls, measuring cups and spoons, spatula or wooden spoon, baking pan, parchment paper, oven mitts, cooling rack and a knife for cutting (adult use). Optional: electric mixer and a spoon for spreading jam.

What ages is this activity suitable for?

Suitable for a wide range of ages when tasks are adapted. Toddlers (2–4) can pour pre-measured ingredients and stir with close help. Preschool and early elementary kids (4–8) can measure, mix, and spread jam with guidance. Older children (9–12) can follow recipes more independently and assist with timing. Teens can lead the process. An adult should always handle ovens, hot pans and any sharp tools.

What are the benefits of baking peanut butter and jam bars with kids?

Baking teaches practical skills: measuring boosts math, following a recipe builds sequencing and reading, and stirring and spreading develop fine motor control. It promotes teamwork, independence and confidence from creating a finished treat. Sensory experiences (smell, taste, texture) aid learning, while choosing flavors encourages creativity. It’s also a good moment to discuss food safety, allergy awareness and healthy portion habits.
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