This Keto Egg Fast Custard Recipe is salted caramel flavored, but can be customized to be almost any flavor you like that comes in a calorie free extract! This egg fast custard is delicious, super easy, and fits into my 5 Day Egg Fast Diet Menu Plan!!!
So it’s day three of my keto egg fast and I’m down another pound this morning for a total loss of 6 pounds so far. I know it’s mostly water weight but I don’t care – it’s still nice to get excited about stepping on the scale every morning again. It reminds me of when I first started keto and the pounds just melted off! It’s very encouraging after such a long dry spell of not losing!

Also of note, I have tons of energy! My mind is clearer, I’m not tired, I feel great overall. Yesterday I did a bunch of yard work at a friend’s new house, and I never felt like I ran out of steam.
My body is obviously getting everything it needs from this keto egg fast, unlike other fasts I’ve tried and read about, where you are totally crashing by the third day. As a reminder, I’m supplementing daily with magnesium, potassium, and making sure I’m getting plenty of sodium as well.
What I Ate on Day Two of my Keto Egg Fast
8 eggs
2 Tbsp butter
6 Tbsp sugar free mayonnaise
1 Tbsp MCT oil (in my bulletproof coffee)
4 string cheese
1 oz sharp cheddar
36 oz La Croix sparkling water
102 oz spring water
16 oz diet coke (I WAS WEAK, GAH!)
So I’m sure you’re all dying to know –Â Do I hate eggs yet? Surprisingly the answer is no. I’ve eaten nothing but eggs, cheese, and butter for three days on this keto egg fast, and I AIN’T EVEN MAD ABOUT IT.
I think the strategy to avoid egg burnout on an egg fast is to change up how you eat them so that it doesn’t feel like you’re eating eggs at every meal.
And there are so many great possible combinations to be had! I’ll be posting more keto egg fast friendly recipes here throughout the week, and they will all be used in the keto egg fast meal plan that I’ll post at the end of next week.

This egg fast custard was the perfect way for me to end my first day of egg fasting, and I plan to make another batch tomorrow. Since I’m avoiding heavy whipping cream for this egg fast, how to get the right texture was problematic.
I finally settled on a mixture of eggs, cream cheese, and water to get the right consistency in this egg fast custard. It was slightly grainier in texture than a typical silky custard made with cream, but definitely still custard-like – and a REALLY nice break from the heavier consistency of cooked eggs in other forms.

You could eat this egg fast custard without the caramel sauce, but why would you? It tastes amazing, and for the purpose of your egg fast the added fat from the sauce is important to get the right ratios.
I flavored this egg fast custard with this caramel flavored extract that I found at our local Walmart, but you could do maple, or other flavors as well to change it up a bit.
By the way – this sauce would also taste amazing on your keto cream cheese pancakes.
Egg Fast Recipe – Salted Caramel Custard (Low Carb)
- Yield: 2 servings 1x
Description
A delicious caramel flavored keto egg fast custard recipe that is also lchf, low carb, and atkins diet friendly.
Ingredients
For the custard:
- 2 eggs
- 2 oz cream cheese, softened
- 3/4 cup water
- 1 1/2 tablespoons granulated sugar substitute (splenda, ideal, swerve, etc.)
- 1 1/2 teaspoon caramel extract
For the caramel sauce:
- 2 tablespoons salted butter
- 2 tablespoons granulated sugar substitute
- 1/4 teaspoons (or to taste) caramel extract
Instructions
To make the custard:
- Combine the eggs, cream cheese, water, sweetener, and caramel extract in a blender or magic bullet and blend until smooth. Pour into two greased 6 oz ramekins or bowls. Preheat the oven to 325 degrees (F). Place your ramekins in a cookie sheet and place in the oven. Pour hot water up into the cookie sheet until halfway up the sides of the ramekins. Bake for 30 minutes, or until set. Remove and chill for at least one hour (or overnight) before serving.
To make the sauce:
- Melt the butter, sweetener, and caramel flavoring in the microwave for 30 seconds (or in a saucepan on the stove until melted) and whisk together until fully blended. Divide between and pour over the two custards just before serving.
- Category: Egg Fast Recipes
Nutrition
- Serving Size: 1 custard + 1 Tbsp caramel sauce
- Calories: 273
- Fat: 27g
- Carbohydrates: 1.5g net
- Protein: 9g
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Katie says
Hi! I love this so much!! Think it would work like a mug cake in the Microwave? I really want to have this as my pick me up/lunch at work.
Thank you!!!
Katie
Mellissa Sevigny says
I’m not sure, I don’t know if it would set up well in the microwave, let us know if it works or not.
Lisa says
It does not work out as a mug cake. It comes out as sweetened eggs.
Leah says
For this recipe can I use a liquid sweetener?
Lesley says
This was almost too good…I want to eat this for every meal of my egg fast ? there’s quite a bit of sweetner in the sauce, have you ever noticed a stall because of it?
Cakemix says
OMG! This is one of the best low carb desserts I have ever made. I mean seriously, they came out perfect! I was scraping dish for every bite I could get. I am making these again, this evening.
Anita says
Made this for dinner tonight, day 3 of my first egg fast. I used 3/4 cup water, vanilla instead of caramel, and a dash of caramel syrup in the sauce, as well as half cream cheese and half marscarpone as I hate the tang of cream cheese in sweet dishes. Delicious and creamy and smooth, and baked up with a nice browned top. Love how quick and easy this was to whip up.
Deirdre says
This was heavenly. I used confectioners swerve and it wasn’t grainy at all, consistent custard texture. I also used hazelnut extract because I couldn’t find the caramel and it was stunningly delicious and a welcome change from conventional eggs. This egg fast is working well. I am on day 5 as of my weigh in this morning I am down 5, which is great, I’ve been stalled for a few weeks, The last two days I haven’t even been able to fit in the “snacks” because I have so little appetite.
Jessie says
Made this today. Delicious!! Walmart didn’t have ramekins so I used muffin pans. worked fine ended up with 6. Used 3/4 c water and a pinch of xanthan gum just to be safe. Thanks for all the recipes!
Donna says
Wow! I made this for my egg fast dinner tonight and made the hubby a ribeye steak and salad. I gave him a taste of mine, and he wanted to trade. He ended up eating the one I made or my lunch tomorrow, so it looks like I’m cooking again in the morning. LOL We both absolutely love this! Thank you!
Dawn says
Do you think it would taste OK using vanilla extract instead of the Caramel extract?
Deirdre says
No doubt, I used hazelnut and it was yummy.
Anne says
This has to be one of my favourite low-carb recipes of all time! I usually double it and make four at a time, and have them on hand for a fast meal or snack even when I am not on an egg fast. Thank you so much for this!