5-minute homemade fajita seasoning brings authentic, smoky, savory flavor without the junk in store-bought packets. Chili powder, cumin, smoked paprika, and garlic come together in a bowl with a bouillon backbone that makes everything taste slow-cooked. One batch seasons a full pound of protein or vegetables and keeps for six months.
Tired of those store-bought fajita seasoning packets filled with mystery ingredients and excess sodium? Say hello to your new weeknight hero! This homemade fajita seasoning is ridiculously easy to mix up in just five minutes and packs a serious flavor punch. It’s a game-changer for everything from classic sizzling fajitas to sheet pan dinners, giving you that authentic, smoky, and savory taste you crave, without any of the junk. Make a big batch—you’ll be reaching for it constantly!
Ingredients
• 1 tablespoon / 15 ml (0.5 fl oz) chili powder
• 1 ½ teaspoons / 7.5 ml (0.3 fl oz) ground cumin
• 1 ¼ teaspoons / 6.25 ml (0.2 fl oz) sea salt
• 1 teaspoon / 5 ml (0.2 fl oz) chicken bouillon granules, or 1 chicken bouillon cube, crushed
• 1 teaspoon / 5 ml (0.2 fl oz) smoked paprika
• 1 teaspoon / 5 ml (0.2 fl oz) garlic powder
• 1 teaspoon / 5 ml (0.2 fl oz) onion powder
• ½ teaspoon / 2.5 ml (0.1 fl oz) dried oregano leaves
• ½ teaspoon / 2.5 ml (0.1 fl oz) granular erythritol (optional)
• ¼ teaspoon / 1.25 ml (0 fl oz) cayenne pepper
Instructions
1. Directions
2. Measure all spices and place them into a small bowl or jar.
3. Whisk or shake vigorously until the mixture is thoroughly combined and uniform in color.
4. Store in an airtight container, such as a spice jar, in a cool, dark place for up to 6 months.
Nutritional Information
• Nutrition Per Serving
• Serving Size: 1 teaspoon
• Calories: 6
• Fat: 0.2g
• Protein: 0.3g
• Total Carbs: 1.1g (0.04 oz)
• Fiber: 0.4g
• Net Carbs: 0.7g (0.02 oz)
Pro Tips
• Use one full batch of this recipe (about 3 ½ tablespoons) to perfectly season 1 pound (454 g / 16 oz) of protein or vegetables.
• Double or triple the recipe and store it in a large airtight jar so you always have it ready for quick meals.
• Easily adjust the spice level by increasing the cayenne pepper for more heat or omitting it entirely for a mild version.
• For a deeper, nuttier flavor, toast whole cumin seeds in a dry skillet for 1-2 minutes until fragrant, then grind them before adding to the mix.
FAQ
Q: How much of this seasoning should I use for fajitas
A: Use the entire batch, which is about 3 ½ tablespoons, to perfectly season one pound of protein like chicken or steak, or one pound of vegetables.
Q: How long does homemade fajita seasoning last
A: When stored in an airtight container like a spice jar in a cool, dark place, this homemade seasoning will stay fresh and flavorful for up to 6 months.
Q: Can I make this fajita seasoning less spicy
A: Yes, this recipe is easy to customize. For a mild version with no heat, simply omit the ¼ teaspoon of cayenne pepper.
Q: Is this fajita seasoning recipe keto friendly
A: Yes, this seasoning is keto-friendly. With only 0.7g (0.02 oz) of net carbs per teaspoon and the use of optional erythritol, it’s a great way to add flavor while following a low-carb or keto diet.
Pro Tips
- Use one full batch — about 3½ tablespoons — to perfectly season 1 pound of protein or vegetables; measure by weight of food, not by guesswork.
- Double or triple the recipe and store it in a large airtight jar so it is always ready for quick weeknight meals.
- Adjust the heat by increasing the cayenne for more kick or omitting it entirely for a mild version the whole family will eat.
- For a deeper, nuttier flavor, toast whole cumin seeds in a dry skillet for 1 to 2 minutes until fragrant, then grind them before adding to the mix.
- Crush the bouillon cube thoroughly if using cubes instead of granules, so it dissolves evenly into the seasoning rather than leaving salty pockets.
Frequently Asked Questions
How long does homemade fajita seasoning keep?
Up to 6 months in an airtight container such as a spice jar, stored in a cool, dark place. Whisk or shake before each use.
Is this fajita seasoning keto?
Per teaspoon it has 1.1 g total carbs with 0.4 g fiber, about 0.7 g net carbs — and the optional erythritol keeps the sweetness without adding sugar.
Can I make it without chicken bouillon?
The bouillon adds a savory depth that plain salt cannot match, but if you skip it, add a little extra sea salt and taste as you season.
How spicy is this seasoning?
It is moderately warm from the chili powder and cayenne. Omit the cayenne for a mild version or add more for real heat.
Recipe card below.
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5-Minute Homemade Fajita Seasoning (Keto-Friendly)
Ingredients
Method
- Directions
- Measure all spices and place them into a small bowl or jar.
- Whisk or shake vigorously until the mixture is thoroughly combined and uniform in color.
- Store in an airtight container, such as a spice jar, in a cool, dark place for up to 6 months.








