Day 8 of 25 Days of Christmas. This microwave peanut brittle tastes as good as that you used to make taking a lot of time and stirring, plus it is so easy and usually fail proof. It’s a family favorite and will be yours too.
I’ve actually been using this recipe and making this for many years. The recipe was originally in a cookbook with a microwave we bought my Mom for Christmas when they were the newest gadget to have. And I think it cost about $500 – $600 dollars. That was really a lot of money to spend 40 years ago.
Make a quick batch for gifts or a late night snack. Always make sure you store it in an air tight container.
Making Microwave Peanut Brittle
It’s pretty easy with just a few ingredients.
You do need to use a stronger microwave, such as 1000 watt. This is pretty standard for most microwave except some really cheap or maybe found in small apartment. I tried once with a lower wattage and it just didn’t cook properly.
Ingredients
1 C granulated sugar
1/2 C white corn syrup
1 C roasted, salted peanuts
1 tsp butter
1 tsp vanilla
1 tsp baking soda
Instructions
Mix sugar and syrup in 1 1/2 qt. microwave safe bowl.
Microwave on High for 4 minutes.
Stir in peanuts.
Microwave on High for 3 – 5 minutes. I did 4 minutes.
Add butter and vanilla.
Stir well.
Microwave on High for 1 – 2 minutes. I did 1 1/2 minutes.
Peanuts will start to brown lightly.
Stir in baking soda quickly until it becomes lighter in color and foamy.
Spread mixture quickly onto a non-stick coated baking sheet.
Cool for 1/2 to 1 hour.
Break into smaller pieces and store.
A Few Hints
CAUTION – Mixture will be very hot so take precautions.
This isn’t a good recipe for young children since this hot mixture will burn easily.
Mine is a bit darker since my Mexican Vanilla is darker than normal.
Always use pure vanilla instead of artificial flavored.
If your baking sheet isn’t a non-stick, lightly butter.
Microwave times can vary by your microwave.
Dig out your old Corning Ware. Love it for recipes like these.
I love watching it foam after adding the baking soda. Notice the change in color as you stir.
Have you ever tried to make this? Let me know.
A few more treat ideas for you.
No Bake Peanut Butter Balls Covered in Chocolate
Hot Chocolate Made in the Crock Pot
The Taste of Cocoa in a Cookie
Microwave Peanut Brittle

An easy, and quick recipe for a family favorite.
Ingredients
- 1 C granulated sugar
- 1/2 C white corn syrup
- 1 C roasted, salted peanuts
- 1 tsp butter
- 1 tsp vanilla
- 1 tsp baking soda
Instructions
- Mix sugar and syrup in 1 1/2 qt. microwave safe bowl.
- Microwave on High for 4 minutes.
- Stir in peanuts.
- Microwave on High for 3 - 5 minutes. I did 4 minutes.
- Add butter and vanilla.
- Stir well.
- Microwave on High for 1 - 2 minutes. I did 1 1/2 minutes.
- Peanuts will start to brown lightly.
- Stir in baking soda quickly until it becomes lighter in color and foamy.
- Spread mixture quickly onto a non-stick coated baking sheet.
- Cool for 1/2 to 1 hour.
- Break into smaller pieces and store.
Notes
CAUTION - Mixture will be very hot so take precautions.
This isn't a good recipe for young children since this hot mixture will burn easily.
Mine is a bit darker since my Mexican Vanilla is darker than normal.
Always use pure vanilla instead of artificial flavored.
If your baking sheet isn't a non-stick, lightly butter.
Microwave times can vary by your microwave.
Dig out your old Corning Ware. Love it for recipes like these.
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