Oven Dried Leeks + Homemade Leek Powder

With very few FAILSAFE options for dried herbs and spices, making your own can open up a lot of options for flavor and fun. Oven drying leeks and using it to make homemade leek powder is definitely a great starting point, since it’s easy and relatively quick (for dehydrating).

Before embarking on a FAILSAFE diet, I was heavy-handed with herbs and spices. Some of my favorites (aside from garlic powder, of course) were dried minced onions and onion powder. I loved how easy it was to throw them into recipes and the way they added a lovely zing of flavor.

And then came FAILSAFE and out went all of my beloved seasonings. It felt so weird to have a mostly empty spice cabinet since 99% of herbs and spices were off the list. Of course I found a few other ways to flavor food, but I definitely missed the convenience of herbs and spices.

I started to wonder about dehydrating foods and how to use up my growing stash of leek tops. I didn’t love leek broth (it was a little bitter to me) and hated throwing away so much of the vegetable. And then it hit me: why not save those leek tops and use them to make my own version of dried minced onions and onion powder. I mean, I used leeks in place of onions all the time. WHY NOT HERE?!

So I began to research dehydrating food and what the best dehydrators were. And promptly had a heart attack because of how expensive they were. It seemed a little ridiculous to me to buy a huge machine when I wasn’t even sure if I’d like it. My only other foray into the world of dehydrating food was with pears and those were only meh. So I decided to test it out in the oven first to see how it would go and then would revisit the idea of getting a dehydrator if it went well.

Turns out it dehydrating leeks was an EXCELLENT idea.

It also turns out that I don’t need a dehydrator when the oven works just fine.

HOORAY for making use of what I already have.

Prep Time 10 min Cook Time 12 min Rest Time 5 min Total Time 27 mins Calories: 186


These cashew butter cookies are a FAILSAFE take on the classic peanut butter cookie. And oh my wow, are they good. 



  1. Preheat oven to 350F/180C. Line a baking sheet with a silicone liner or parchment paper and set aside.

  2. In a medium sized bowl beat shortening, cashew butter, and sugar until fluffy. 

  3. Add in egg and vanilla and beat again.

  4. Add milk and beat until smooth.

  5. Add in flour and baking powder and stir to combine. If using real butter, place in refrigerator for at least 30 minutes. If using shortening there is no need to chill the dough.

  6. Shape the dough into about 12 1-inch balls, and place onto your cookie sheet. Make sure to leave space between the cookies.

  7. Press each ball with a fork to flatten and create a crisscross pattern. 

  8. Place in the oven and bake for 10-12 minutes. Allow cookies to cool completely before serving. Store in an airtight container or freeze for later.

Nutrition Facts

Serving Size 1 cookie

Servings 12

Amount Per Serving
Calories 186
% Daily Value *
Total Fat 9.6g15%
Saturated Fat 2.2g12%
Cholesterol 14mg5%
Sodium 6mg1%
Potassium 26mg1%
Total Carbohydrate 22g8%
Dietary Fiber 0.3g2%
Sugars 9.1g
Protein 3.3g7%

Calcium 13%
Vitamin D 2%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.


Here are instructions to make your own raw cashew butter. Make sure to source raw cashews, as roasted cashews are considered to be moderate salicylates. 

My favorite gluten free flour blend is still the all-purpose blend from Silvana’s Kitchen. You can find the recipe hereYou can find the recipe here


This recipe is FAILSAFE and RPAH Elimination Diet friendly. It is also gluten free, dairy free, nightshade free, soy free, and low salicylate (depending on portion size). 

Keywords: cookies, cashew butter, raw cashews, low salicylate, vegetarian, dairy free, gluten free, soy free, dessert, cookies

Emily @ My Failsafe Life

Diving feet first into a FAILSAFE diet after years of struggling with digestive issues and feeling like crap.

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