Fat Free Custard Recipe: Silky Smooth Egg-Based Delight

This egg-based custard delivers silky smooth texture without a trace of fat. I developed this recipe to prove that decadent desserts can be both delicious and light.

Using simple ingredients and careful temperature control, you’ll achieve a creamy result that rivals traditional versions. The secret lies in gentle cooking and constant stirring.

Ingredients for Fat Free Custard

Nine simple ingredients create this light, creamy egg-based custard with zero fat.

The eggs are the star here—fresh, high-quality large eggs give the silkiest texture. I grab mine from Whole Foods or the farmers market when possible. Room temperature eggs incorporate better, so pull them out 30 minutes before starting. The milk can be any variety, but whole milk actually works best (even though we’re making a fat-free custard, the milk’s fat contributes to creaminess—trust the process).

Need to swap something? Soy or oat milk works instead of dairy milk (though the flavor changes slightly). No cornstarch? Arrowroot powder at the same amount does the trick. Out of vanilla? A pinch of cinnamon or cardamom adds warmth. The sugar can be reduced by half, but the texture might be slightly thinner.

This custard keeps beautifully in the fridge for 4-5 days. Store it in an airtight container with plastic wrap pressed directly on the surface to prevent a skin from forming. It’s best served chilled, and honestly tastes even better the next day once the flavors meld.

Step-by-Step Instructions for Fat Free Custard

Here’s my proven method for achieving that perfect silky texture without any added fat.

Step 1: Create the Cornstarch Slurry

In a small bowl, whisk together the 2 tbsp Cornstarch and 2 tbsp Cold Water until completely smooth. This slurry prevents lumps from forming when you add the cornstarch directly to hot liquids.

I always make this first so it’s ready to go when needed. The mixture should look like thin, milky glue—thick enough to coat the back of a spoon but still pourable. Set it aside while you prepare the rest.

Step 2: Heat the Milk and Infuse Flavors

Pour the 2 cups Whole Milk into a medium saucepan and set it over medium heat. Add the 0.5 cup Granulated Sugar, 0.125 tsp Salt, 0.125 tsp Ground Nutmeg, and 0.5 tsp Lemon Zest to the milk.

Heat the mixture, stirring frequently, until it’s steaming and small bubbles form at the edges—this should take about 5-7 minutes. Don’t let it boil. You want the sugar to dissolve completely and the flavors to meld gently. The milk should be hot enough that you can see wisps of steam rising from the surface.

Step 3: Temper the Eggs

In a separate bowl, whisk together the 6 whole Large Eggs, 1 tsp Vanilla Extract, and 0.25 tsp Almond Extract until well combined and slightly frothy. This egg mixture will thicken your custard.

Slowly pour about 1 cup of the hot milk mixture into the eggs while whisking constantly. This tempering process raises the eggs’ temperature gradually so they don’t scramble when added to the hot milk. The egg mixture should warm up noticeably but remain smooth and liquid.

Step 4: Thicken the Custard

Pour the tempered egg mixture back into the saucepan with the remaining hot milk. Stir in the cornstarch slurry. Cook over medium-low heat, stirring constantly with a wooden spoon or silicone spatula.

After about 8-10 minutes, the custard will begin to thicken. Keep stirring and watch for it to reach the consistency of thick pudding—it should coat the back of your spoon heavily and leave a clear path when you run your finger through it. Remove from heat immediately once it reaches this stage to prevent overcooking.

Step 5: Cool and Serve

Pour the custard into a clean bowl or individual serving dishes. Press plastic wrap directly onto the surface to prevent a skin from forming. Let it cool at room temperature for 15-20 minutes, then refrigerate for at least 2 hours.

The custard will continue to thicken as it chills. Serve it cold, garnished with an extra sprinkle of nutmeg if desired. It should be silky smooth with a rich, creamy texture despite having no added fat. The flavors will be most pronounced after it’s fully chilled.

Essential Equipment for fat free custard

Essential Saucepan

Use a medium heavy-bottomed saucepan (about 2-3 quarts) for even heat distribution. I recommend All-Clad Stainless Steel or Cuisinart MultiClad—both prevent hot spots that can scramble your eggs. Non-stick works but avoid high heat that damages the coating.

Whisk Selection

A balloon whisk is ideal for tempering eggs and stirring constantly during cooking. The rounded shape reaches saucepan corners better than flat whisks. I keep a 10-inch OXO Good Grips whisk dedicated to custard-making for guaranteed smooth results. 💛

Measuring Tools

Precision matters with custard, so use liquid measuring cups for milk and dry measuring spoons for cornstarch. I love my Pyrek glass measuring set—the pour spouts prevent spills. A kitchen scale helps with cornstarch for absolute accuracy.

Mixing Bowls

Have at least two medium bowls ready: one for tempering eggs, one for the cornstarch slurry. I prefer stainless steel for its durability and temperature stability. A 3-quart mixing bowl gives ample room for whisking without splashing.

Temperature Control

An instant-read thermometer ensures your milk never exceeds 180°F. I use a ThermoWorks Thermapen—it gives readings in 2-3 seconds. This prevents overheating that turns your custard into sweet scrambled eggs.

Straining Option

For ultra-smooth texture, strain the finished custard through a fine-mesh sieve. This catches any stray cooked egg bits. I keep a 5-inch sieve from RSVP International in my drawer for just this purpose. 💡

Frequently Asked Questions