Sugar-Free Salted Caramel Syrup

This is the sugar-free half of our Salted Caramel Syrup — the same double-salted method (extra fine salt cooked in, flaky salt stirred in after cooling), built on allulose instead of cane sugar. Allulose is the sweetener to reach for here specifically because it browns and caramelizes on the stovetop much like real sugar does.

The Syrup

Spread 1 cup granulated allulose evenly in a dry saucepan over medium heat and let it melt, swirling the pan (not stirring) as it turns from clear to golden to amber over about 8-10 minutes — go by color, not time, same as the Standard recipe. Off the heat, carefully whisk in 3/4 cup warm water a little at a time — it bubbles up hard, so add it slowly and stand back. If any allulose seizes into hard clumps, a minute or two back over low heat redissolves it. Stir in 1/2 tsp fine sea salt (double the plain Sugar-Free Caramel Syrup’s amount) and 1/2 tsp vanilla extract, then let it cool for about 5 minutes before stirring in 1/4 tsp flaky sea salt, so the flakes survive in suspension instead of fully dissolving.

Store the finished syrup in a sealed jar in the fridge for up to 2 weeks. It makes roughly 12 drinks’ worth at 2 tbsp per serving.

This batch (12 servings)$3.15 total

Per 2 tbsp serving~$0.26

Assumptions: allulose at typical grocery pricing (~$3/cup at bulk-bag pricing, same sourcing as our other sugar-free syrups), plus flaky sea salt (Maldon or store equivalent, ~$6-8/8.5oz box) at a fraction of a cent per 1/4 tsp batch addition, rounded up here. Doubling the fine salt costs essentially nothing extra.

Storage & Shelf Life

• Keeps about 2 weeks in a sealed jar in the fridge, same as the Standard syrup.
• Give it a shake before using — both because it thickens slightly in the fridge and because the flaky salt bits can settle.
• Double the batch if you go through salted caramel lattes quickly — everything scales evenly, but caramelize in a wider pan so it melts in a thin, even layer.

Swaps & Notes

• Why allulose and not monk fruit or erythritol? Allulose is the sugar-free sweetener that most closely mimics real sugar’s browning (Maillard) behavior — it genuinely caramelizes instead of just dissolving, the same reason our plain Sugar-Free Caramel Syrup uses it.
• No candy thermometer needed — go by color, exactly like the Standard recipe: a deep amber is the target.

What to Make With This

2 tbsp of this syrup, stirred into hot espresso before adding milk, plus a finishing pinch of flaky salt on top, is the Sugar-Free Salted Caramel Latte. If sugar content isn’t your main concern, the Salted Caramel Syrup uses the same method with regular sugar, or the Maple Salted Caramel Syrup behind our Ingredient-Honest tier swaps in real maple syrup instead.

Recipe Card Summary

Sugar-Free Salted Caramel Syrup

• 1 cup allulose, browned and thinned with 3/4 cup water, double-salted (1/2 tsp fine salt cooked in + 1/4 tsp flaky salt stirred in after cooling), plus vanilla
• Makes ~12 servings (2 tbsp each) · Prep: 5 min · Total: 20 min (mostly caramelizing + cooling)
• Cost: ~$3.15/batch, ~$0.26/serving

FAQ

Can I use monk fruit or erythritol instead of allulose?

Not for this method — they don’t caramelize the same way and are more likely to seize or crystallize instead of turning amber. Allulose is specifically chosen here for its sugar-like browning behavior, same as our plain Sugar-Free Caramel Syrup.

Does doubling the salt change the sugar or calorie math?

No — salt has zero calories and no sugar, so this syrup is calorie-for-calorie identical to the plain Sugar-Free Caramel Syrup. Only the flavor changes.

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

No — make one batch and it covers about 12 drinks over two weeks. The Sugar-Free Salted Caramel Latte recipe assumes you already have a jar on hand.