Indulge in the rich, nutty flavor of these easy-to-make peanut butter bars. Perfect for a quick snack or a delightful dessert, these bars are both gluten-free and delicious. With just a few simple ingredients, you can whip up a batch in no time.
All the ingredients in this recipe are commonly found in most households. However, if you don't have vanilla extract on hand, you can easily find it in the baking aisle of your local supermarket. Make sure to use a good quality peanut butter for the best flavor.

Ingredients For Peanut Butter Bars Recipe
Peanut butter: Provides the rich, nutty base for the bars.
Sugar: Adds sweetness to balance the peanut butter.
Egg: Helps bind the ingredients together.
Vanilla extract: Enhances the flavor with a hint of sweetness.
Technique Tip for Making Peanut Butter Bars
When mixing the peanut butter, sugar, egg, and vanilla extract together, ensure that the peanut butter is at room temperature. This will make it easier to blend all the ingredients smoothly, resulting in a more uniform batter.
Suggested Side Dishes
Alternative Ingredients
peanut butter - Substitute with almond butter: Almond butter has a similar texture and flavor profile, making it a great alternative for those with peanut allergies.
sugar - Substitute with coconut sugar: Coconut sugar has a lower glycemic index and adds a slight caramel flavor, making it a healthier and flavorful alternative.
egg - Substitute with flax egg: Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water and let it sit for a few minutes. This mixture mimics the binding properties of eggs and is suitable for vegan diets.
vanilla extract - Substitute with maple syrup: Maple syrup adds a natural sweetness and a hint of flavor that complements the other ingredients well.
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How to Store or Freeze These Bars
Allow the peanut butter bars to cool completely in the baking pan. This ensures they firm up and are easier to handle.
Once cooled, cut the bars into desired sizes. Use a sharp knife to get clean edges.
For short-term storage, place the bars in an airtight container. Layer them with parchment paper to prevent sticking.
Store the container at room temperature for up to 3 days. This keeps the bars soft and chewy.
For longer storage, place the bars in a single layer on a baking sheet and freeze for about an hour. This prevents them from sticking together.
Transfer the frozen bars to a freezer-safe bag or container. Label with the date for easy tracking.
Store in the freezer for up to 3 months. When ready to enjoy, let them thaw at room temperature for about 15-20 minutes.
For an extra treat, warm a bar in the microwave for 10-15 seconds. This gives it a freshly baked texture.
If you prefer a firmer texture, store the bars in the refrigerator. They will keep for up to a week.
Always ensure the container is sealed tightly to maintain freshness and prevent the bars from drying out.
How to Reheat Leftovers
Oven Method: Preheat your oven to 300°F (150°C). Place the peanut butter bars on a baking sheet lined with parchment paper. Cover them loosely with aluminum foil to prevent drying out. Heat for about 10 minutes or until warmed through. This method helps maintain the bars' texture and flavor.
Microwave Method: Place a peanut butter bar on a microwave-safe plate. Cover it with a damp paper towel to keep it moist. Microwave on medium power for 20-30 seconds. Check if it's warm enough; if not, continue in 10-second intervals. Be cautious not to overheat, as this can make the bars too soft or dry.
Toaster Oven Method: Preheat your toaster oven to 300°F (150°C). Place the peanut butter bars on a small baking tray. Cover them with aluminum foil to prevent them from drying out. Heat for about 5-7 minutes. This method is quick and retains the bars' delightful texture.
Steaming Method: If you have a steamer, place the peanut butter bars on a heatproof plate and put it in the steamer. Steam for about 5 minutes. This method keeps the bars moist and soft, enhancing their rich, peanut butter flavor.
Air Fryer Method: Preheat your air fryer to 300°F (150°C). Place the peanut butter bars in the air fryer basket, ensuring they are not touching. Heat for 3-5 minutes, checking halfway through. This method gives a slightly crisp exterior while keeping the inside soft and chewy.
Essential Tools for Making Peanut Butter Bars
Oven: Used to bake the peanut butter bars at the specified temperature of 350°F (175°C).
Mixing bowl: Used to combine the peanut butter, sugar, egg, and vanilla extract.
Spatula: Useful for mixing the ingredients together thoroughly.
8x8 inch baking pan: The container in which the mixture is spread and baked.
Non-stick cooking spray: Used to grease the baking pan to prevent the bars from sticking.
Measuring cups: Used to measure out the peanut butter and sugar accurately.
Measuring spoons: Used to measure the vanilla extract and ensure the correct amount is added.
Oven mitts: Essential for safely handling the hot baking pan when removing it from the oven.
Cooling rack: Used to cool the baked bars evenly before cutting them.
Knife: Used to cut the cooled mixture into bars.
Cutting board: Provides a surface to cut the bars on, ensuring clean and even pieces.
How to Save Time on This Recipe
Pre-measure ingredients: Measure out peanut butter, sugar, egg, and vanilla extract ahead of time to streamline the process.
Use parchment paper: Line the baking pan with parchment paper for easy removal and less cleanup.
Mix efficiently: Use an electric mixer to quickly combine the ingredients.
Cool quickly: Place the baking pan on a wire rack to speed up the cooling process.

Peanut Butter Bars Recipe
Ingredients
Main Ingredients
- 1 cup peanut butter
- 1 cup sugar
- 1 egg
- 1 teaspoon vanilla extract
Instructions
- Preheat oven to 350°F (175°C).
- Mix peanut butter, sugar, egg, and vanilla in a bowl.
- Spread mixture in a greased 8x8 inch baking pan.
- Bake for 20 minutes.
- Let cool before cutting into bars.
Nutritional Value
Keywords
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