Keto Aioli - Homemade Garlic Mayonnaise
This keto aioli is a hand-whisked garlic mayonnaise with no sugar, no starch and no preservatives. It consists of practically nothing but fat and egg yolk, which makes it one of the lowest-carb sauces there is.
The key facts at a glance
- Time required: approx. 10 minutes - quick, but it needs attention while adding the oil.
- Only approx. 0.3 g net carbs and 26 g fat per serving.
- Ingredients: egg yolk, canola oil, olive oil, garlic cloves, lemon juice, Dijon mustard.
- Suits anyone looking for a high-fat sauce for meat, fish or roasted vegetables.
Ingredients
Makes approx. 250 g of aioli, that is eight servings of approx. 30 g - as the only dip, count on four people.
| Amount | Ingredient | Note | ||
|---|---|---|---|---|
| egg yolks | very fresh, at room temperature | |||
| very fresh, at room temperature | ||||
| canola oil | neutral, at room temperature | |||
| neutral, at room temperature | ||||
| olive oil | at most a third of the oil, or the aioli turns bitter | |||
| at most a third of the oil, or the aioli turns bitter | ||||
| garlic cloves | finely grated | |||
| finely grated | ||||
| lemon juice | approx. 2 tsp | |||
| approx. 2 tsp | ||||
| Dijon mustard | approx. 1 tsp, stabilizes the emulsion | |||
| approx. 1 tsp, stabilizes the emulsion | ||||
| salt | - | |||
| cayenne pepper | - | |||
How it is made
Stir the egg yolk with mustard, lemon juice and grated garlic, then whisk in the oil drop by drop at first and later in a thin stream until a thick emulsion forms. Season with salt and cayenne pepper at the end.
Why aioli suits keto well
Aioli is over 80 percent fat and contains practically no carbs - here approx. 0.3 g per serving, which comes from the lemon juice and garlic. That makes it the ideal sauce when a meal needs fat but has no room on the carb side: lean chicken, fish or roasted vegetables, for instance. Bought mayonnaises and garlic sauces, by contrast, are rarely composed this simply: many contain sugar, modified starch or glucose syrup as a stabilizer, and light versions replace part of the fat with water and thickeners - which raises the relative carb share and undermines the very purpose of the sauce. Whisk it yourself and you know exactly what is in it, and you can steer the fat profile through your choice of oil. Nutrition values for the individual ingredients can be looked up in the FDDB nutrition database.
Source: FDDB nutrition database
Raw egg yolk: what to watch for
Aioli is whisked with raw egg yolk. The German Federal Institute for Risk Assessment recommends continuous refrigeration and consumption within 24 hours for dishes containing raw egg, because salmonella can multiply rapidly at room temperature. For pregnant people, small children, older people and anyone immunocompromised, pasteurized egg yolk is the safe alternative - it emulsifies just as well. In practice that means using very fresh eggs, chilling the aioli immediately after whisking and not leaving it standing on a buffet for hours.
Source: BfR: protection against foodborne salmonella infections
Keeping net carbs predictable
At 0.3 g per serving, aioli is one of the few sauces that simply do not register in a daily budget. What is relevant instead is the energy: three tablespoons deliver around 26 g fat. If you count calories, plan it as the fat component of the meal rather than serving it alongside an already high-fat main dish.
How do I serve and vary the aioli?
Aioli suits grilled meat, fish, roasted vegetables, cauliflower wings, boiled eggs, or as a base for burger and herb sauces. In practice the temperature of the oil is the most common failure point: cold oil straight from the fridge onto room-temperature egg yolk splits the emulsion considerably more often than oil that is also at room temperature.
Meal prep, prepping ahead and storing
Because of the raw egg yolk, aioli reliably keeps for only 1 to 2 days in the fridge. With pasteurized egg yolk it is 3 to 4 days. It works well as a base: from the basic batch you can make two completely different sauces the next day with herbs, pickles or paprika powder. Freezing does not work - the emulsion splits as it thaws.
Variation without raw egg
If you want to avoid raw egg, whisk the aioli with 100 g cream cheese and 60 ml olive oil instead of egg yolk. The result is somewhat firmer and slightly tangy, carries no emulsifying risk and keeps for 4 to 5 days in the fridge. For the classic consistency, stir in a tablespoon of water.
Which tips help when whisking aioli?
- Bring the egg yolk and oil to room temperature, or the emulsion splits more easily.
- Add the oil genuinely drop by drop at first - only after about a third may a thin stream follow.
- Do not leave out the Dijon mustard: it stabilizes the emulsion alongside the egg yolk.
- If the sauce splits: whisk a fresh egg yolk in a clean bowl and stir the split mixture in drop by drop.
- Use only a third olive oil, or the aioli turns bitter.
Nutrition values
| Nutrient | Per 100 g | Per serving | Keto context |
|---|---|---|---|
| Calories | approx. 760 kcal | approx. 240 kcal | Very high; aioli is a concentrated fat source, not a side dish on the margin. |
| Very high; aioli is a concentrated fat source, not a side dish on the margin. | |||
| Fat | approx. 83 g | approx. 26 g | Ideal for keto; the fatty acid profile can be steered through the choice of oil. |
| Ideal for keto; the fatty acid profile can be steered through the choice of oil. | |||
| Net carbs | approx. 0.8 g | approx. 0.3 g | Practically negligible - one of the lowest-carb sauces there is. |
| Practically negligible - one of the lowest-carb sauces there is. | |||
| Sugar | approx. 0.5 g | approx. 0.2 g | Only traces from the lemon juice and garlic, with no sugar added. |
| Only traces from the lemon juice and garlic, with no sugar added. | |||
| Protein | approx. 2.4 g | approx. 0.8 g | Low; the egg yolk serves as an emulsifier here, not as a protein source. |
| Low; the egg yolk serves as an emulsifier here, not as a protein source. | |||
| Salt | approx. 0.9 g | approx. 0.3 g | Moderate and entirely under your own control when seasoning. |
| Moderate and entirely under your own control when seasoning. | |||
Note: Nutrition values are estimated averages per 100 g and per serving and may vary depending on ingredients, brands, portion size, and preparation. They do not replace individual nutrition or medical advice.
FAQ
Is aioli allowed on keto?
Yes. Homemade aioli contains practically no carbs at around 0.3 g net carbs per serving and consists predominantly of fat. With bought versions the ingredient list is worth a look - sugar and modified starch are common there.
Which oil is suitable for aioli?
Best is a neutral oil such as canola as the main share, topped up with at most a third olive oil. Pure olive oil often turns bitter as you whisk, because the vigorous stirring releases its bitter compounds.
What do I do if the aioli splits?
Put a fresh egg yolk into a clean bowl and whisk the split mixture in drop by drop. That rescues the emulsion almost every time, with no ingredients lost.
Does aioli suit weight loss on keto?
Only when deliberately measured. The carbs are negligible, but three tablespoons deliver about 240 kcal. It makes sense when a lean meal needs fat - not as an extra alongside an already high-fat dish.