Best Keto Microwave Peanut Butter Brittle

Here’s a Keto microwave recipe for when your sweet cravings are strong. This Keto microwave peanut butter brittle is made from 5 simple ingredients and comes together in less than 10 minutes, plus cooling time. Melted butter and powdered sweetener are first combined to make a thick paste. It is then microwaved to melt together before peanut butter and roasted peanut pieces are added to the mixture. It’s then microwaved for a final time before spreading over a lined baking tray and allowed to cool for at least 30 minutes. The brittle will harden and be ready to crack into pieces.

What peanuts should I use?

We suggest using unsalted and unsweetened roasted peanuts. You can use whole or roughly chopped peanut pieces.

What peanut butter should I use?

You can use smooth or crunchy peanut butter. Please check the ingredients on the label carefully. Choose a natural peanut butter that contains only 2 ingredients - peanuts and salt! Many contain added sugars and oils, and these should be avoided.

Can I adapt this recipe to other diets?

This recipe is naturally gluten-free; you can make it dairy-free and vegan by substituting the butter for a good quality plant-based alternative.

Can I make any substitutions?

If you don't have powdered erythritol, you can simply use granulated erythritol and ensure to stir well after microwaving so that all the granules have dissolved. You can use any Keto-friendly sweetener of choice here, adjusting quantities to taste.

If you are allergic to peanuts, you may also switch up the recipe by substituting the peanuts for almonds and using almond butter instead of peanut butter.

If you are allergic to tree nuts, try using tahini (sesame paste) and sesame seeds. Or another recipe variation is to use sunflower or pumpkin seeds (or a mixture of both) and sunflower seed butter.

How to store the microwave peanut brittle?

Place the peanut brittle in an air-tight container and store in a cool place. It will keep for about a month.