Sugar-Free Pumpkin Spice Syrup

This is the syrup batch behind our Sugar-Free Pumpkin Spice Latte — pulled out into its own recipe so you make it once and just pull 2 tbsp per drink for the next couple of weeks. Most chains don’t stock a sugar-free pumpkin spice syrup at all, so making it at home is the only way to get this flavor without the sugar.

The Syrup

Combine 1 cup water and 1 cup granulated monk fruit or allulose sweetener in a small saucepan over medium heat, stirring until it fully dissolves — sugar-free sweeteners can take a little longer to dissolve smoothly than plain sugar, so don’t rush this step. Whisk in 1/4 cup canned pumpkin puree, 1 tsp cinnamon, 1/2 tsp ginger, 1/4 tsp clove, and 1/4 tsp nutmeg, then simmer 4-5 minutes. If you want a syrup with more body (closer to what a bottled sugar-free syrup feels like), whisk in a small pinch of xanthan gum off the heat — add it slowly, it thickens fast. Finish with 1/2 tsp vanilla extract, cool, and store in a sealed jar in the fridge for up to 2 weeks.

Makes about 12 drinks’ worth at 2 tbsp per serving.

This batch (12 servings)$3.55 total

Per 2 tbsp serving~$0.30

Assumptions: monk fruit/allulose sweetener at typical grocery pricing (~$3/cup at bulk-bag pricing) — it’s pricier per cup than plain sugar, but a little goes a long way. Your numbers shift a little with which sweetener brand you use; the gap versus the sugared version doesn’t change much.

Storage & Shelf Life

• Keeps about 2 weeks in a sealed jar in the fridge, same as the standard syrup.
• Xanthan gum is optional but recommended if you’ve had store-bought sugar-free syrups before and are used to their thicker mouthfeel.
• Crystallizing in the fridge? Some sweetener blends crystallize faster than sugar does — gently reheat the jar in a warm water bath to re-dissolve before using.

Sweetener Notes

• Monk fruit or allulose blends measure roughly cup-for-cup like sugar and behave most like it here — the easiest substitution if this is your first sugar-free syrup.
• Stevia works but is far more concentrated — use a fraction of the amount and adjust to taste, since stevia can read as slightly bitter at higher concentrations.
• This same base method — swap the pumpkin and spices for other flavors — is the foundation of every other sugar-free syrup on the site, including Sugar-Free Vanilla Syrup and Sugar-Free Hazelnut Syrup.

What to Make With This

2 tbsp of this syrup, stirred into hot espresso before adding milk, is the Sugar-Free Pumpkin Spice Latte. If sugar content isn’t your main concern, the Pumpkin Spice Syrup (Standard) uses the same method with regular sugar, or the Pumpkin-Maple Base skips syrup entirely for real pumpkin and maple.

Recipe Card Summary

Sugar-Free Pumpkin Spice Syrup

• 1 cup water, 1 cup monk fruit/allulose sweetener, 1/4 cup pumpkin puree, spices, vanilla, optional xanthan gum
• Makes ~12 servings (2 tbsp each) · Prep: 5 min · Total: 15 min (mostly simmering + cooling)
• Cost: ~$3.55/batch, ~$0.30/serving

FAQ

Can I buy a sugar-free pumpkin spice syrup instead of making it?

Not really — most major chains don’t stock one, even though they carry other sugar-free syrup flavors. That gap is exactly why this is a homemade-only recipe right now.

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 Pumpkin Spice Latte recipe assumes you already have a jar on hand.

Does monk fruit or allulose change the taste?

Slightly — both are close to neutral-sweet with a very mild aftertaste some people notice more than others.