Keto Eggnog Cream Cold Brew: Yuletide Chemistry for the Modern Metabolist

Ingredients

• 250 ml (1 cup) cold brew coffee

• 2 large egg yolks (pasteurised)

• 100 ml (⅓ cup) heavy cream or coconut cream

• 1 tbsp MCT oil or unsalted grass-fed butter (melted)

• ½ tsp vanilla extract

• ¼ tsp ground nutmeg

• ¼ tsp ground cinnamon

• 1–2 drops monk fruit or stevia sweetener (to taste)

• Ice cubes

Method

1. In a blender, combine egg yolks, cream, MCT oil, vanilla, spices, and sweetener. Blend until velvety smooth and thick.

2. Fill a glass with ice and pour in the cold brew coffee.

3. Gently float the eggnog cream over the top using the back of a spoon.

4. Dust lightly with nutmeg and serve chilled.

5. Sip slowly and marvel that nutritional ketosis can taste like Christmas and feel like rocket fuel.

The Science of the Beverage

This festive fusion of chemistry and comfort transforms the classic eggnog into a metabolic masterpiece. Each ingredient is chosen not just for decadence, but for its ability to stabilise energy, enhance cognition, and calm inflammation.

Egg yolks are rich in choline and phospholipids, essential for neurotransmitter synthesis (especially acetylcholine) and healthy cell membrane formation (Nutrients. 2018;10(4):426). They provide a slow-burning, nutrient-dense foundation that supports brain and liver function.

MCT oil introduces rapid energy via ketone production, bypassing the need for glucose and supplying the brain with an efficient alternative fuel (Nutrients. 2020;12(6):1639). This enhances alertness and reduces the mental fog that often accompanies carb-heavy drinks.

Cinnamon and nutmeg are more than festive seasonings. Cinnamon helps regulate blood glucose through improved insulin signalling, while nutmeg offers antioxidant eugenol and myristicin compounds known to reduce oxidative stress and inflammation (Food Funct. 2015;6(12):4408–4417).

Cold brew coffee adds chlorogenic acids, powerful polyphenols that modulate glucose metabolism and promote fat oxidation without the acidity of hot-brewed coffee (Nutrients. 2019;11(11):2703).

Heavy cream brings conjugated linoleic acid (CLA), a fatty acid linked to improved lipid profiles and reduced inflammation (Nutr Metab. 2010;7:37). It also enhances satiety and provides a luscious texture that makes the drink feel like a dessert, not a diet.

Together, these ingredients create an elegant biochemical orchestra that keeps blood sugar low, energy steady, and spirits bright. It’s not just eggnog… it’s edible equilibrium.

Nutritional Information

(Per Serving)

• Calories: 320 kcal

• Fat: 33 g

• Carbohydrates: 2 g (net)

• Protein: 6 g

• Fibre: 0 g

Artistic interpretation - details may differ from the actual.