Sugar-Free Tiramisu Sauce

This is the sugar-free half of our Tiramisu Sauce family — the same real mascarpone-and-cocoa method, with a monk fruit or allulose sweetener standing in for cane sugar.

The Sauce

Whisk 3/4 cup water, 1/2 cup monk fruit or allulose sweetener, 2 tbsp cocoa powder, and 1 tsp instant espresso powder together before turning on the heat. Simmer 4-5 minutes, whisking often — sugar-free sweeteners can take a bit longer to fully dissolve than sugar does. Off the heat, whisk in 2 tbsp mascarpone cheese until smooth, then stir in a pinch of salt and 1/2 tsp vanilla extract. Let cool completely.

Store the finished sauce in a sealed jar in the fridge for up to 1 week. It makes roughly 7 drinks’ worth at 2 tbsp per serving.

This batch (7 servings)$2.62 total

Per 2 tbsp serving~$0.37

Assumptions: monk fruit/allulose sweetener at typical grocery pricing (~$3/cup at bulk-bag pricing); mascarpone cheese and instant espresso powder at the same typical grocery pricing as the Standard sauce. The sweetener costs more per cup than plain sugar, which is why this sauce runs pricier per serving than the Standard version despite the same method.

Storage & Shelf Life

• Keeps about 1 week in a sealed jar in the fridge, same as the Standard sauce — real mascarpone is dairy.
• Give it a whisk or shake before using — cocoa-and-dairy sauces can separate slightly.

Swaps & Notes

• This is genuinely a large calorie cut, not just a sugar cut. At 21 cal/serving versus the Standard sauce’s 63, most of that difference comes from removing the sugar — mascarpone still contributes real calories either way.
• No mascarpone? Full-fat cream cheese, softened, is the closest substitute.

What to Make With This

2 tbsp of this sauce, stirred into hot espresso before adding milk, is the Sugar-Free Tiramisu Latte. If sugar isn’t your main concern, the Tiramisu Sauce uses real sugar, or the Maple Tiramisu Sauce behind our Ingredient-Honest tier uses real maple syrup and real brewed espresso instead.

Recipe Card Summary

Sugar-Free Tiramisu Sauce

• 3/4 cup water, 1/2 cup monk fruit/allulose sweetener, 2 tbsp cocoa powder, 2 tbsp mascarpone, 1 tsp instant espresso powder, vanilla, salt
• Makes ~7 servings (2 tbsp each) · Prep: 5 min · Total: 15 min (mostly simmering + cooling)
• Cost: ~$2.62/batch, ~$0.37/serving

FAQ

Is this actually sugar-free if it has mascarpone in it?

Essentially yes — mascarpone carries only a trace of natural milk sugar, nowhere near the added sugar a sweetened sauce would carry. The added sugar in this recipe specifically comes from the sweetener, which this version replaces with monk fruit/allulose.

Do I need to make this every time I want a latte?

No — make one batch and it covers about 7 drinks over about a week. The Sugar-Free Tiramisu Latte recipe assumes you already have a jar on hand.

Does monk fruit or allulose change the taste here?

Slightly — both are close to neutral-sweet, and the real mascarpone, cocoa, and espresso powder are still the dominant flavors either way.