Description
This Christmas Cracker Toffee is a sugar free, THM friendly remake of the amazing “Christmas Crack” toffee using saltine crackers! Think layers of cracker submerged in caramel with a smooth chocolate ganache layer on top. Add some sprinkles or flaky salt if you’re feeling fancy! If the Wasa crackers take some getting used to, give the toffee candy a few days in the fridge to soften up and I think you’ll be pleasantly surprised. It’s very more-ish! THM S, sugar free
Ingredients
Caramel sauce:
- 1 stick (1/2 cup) salted butter
- 1 cup heavy whipping cream
- 1 tablespoon THM Super Sweet Blend (or more, to taste)
- 2 teaspoons molasses
- 1/2 teaspoon vanilla extract
- 1/2 teaspoon xanthan gum (do not use glucomannan)
6 Light Rye Wasa crackers
Chocolate ganache:
- 1/2 cup heavy whipping cream
- 1/2 cup sugar free chocolate chips (I used Lily’s semisweet)
- Pinch of salt
Instructions
Make the caramel. In a nonstick saucepan over medium heat, whisk together all the caramel ingredients (sprinkle the xanthan gum in while whisking so it doesn’t clump). Bring to a boil, then turn the heat down to low and simmer the caramel for 7 minutes with the saucepan covered, whisking occasionally. The end result should be thick but pourable – a dark golden brown color.
Arrange 6 Light Rye Wasa crackers in the bottom of a 9×13 inch pan so they are not overlapping. Pour the hot caramel sauce over them and bake at 400* F for 15 minutes or until a darker caramel color and bubbly. Let cool on the counter completely before making the ganache.
Make the ganache right before you’re planning to use it, otherwise it will solidify and not look as nice when you try to drizzle or spread it (ask me how I know). Heat the cream until almost boiling, then take it out of the microwave (or off the burner) and pour in the chocolate chips. Let the cream and chocolate stand for 5 minutes so the chips can melt from the heat of the cream. Whisk the ganache just until it comes together – smooth and glossy. I like to add a pinch of salt while whisking.
Drizzle or spread the ganache over the cooled caramel crackers. Be decorative or just spread it out in one layer with an offset spatula. Feel free to top with decorative sprinkles if you like (probably not THM friendly, but I don’t mind). Some flaky salt on top would be awesome if you’re feeling fancy!
Transfer the toffee to the fridge to chill completely before cutting into 24 pieces. Store in the fridge for the perfect soft caramel bite. (The freezer probably works as well for longer term storage if you don’t want to eat it all right away).
CLICK HERE for an Instagram reel of this recipe if you have questions about how to make it!
Notes
I used Lily’s semisweet sugar free chocolate chips (I get mine from Walmart) for the ganache, but you can find the original ganache recipe using unsweetened baker’s chocolate in my first cookbook, Necessary Food, on page 305. I didn’t add any additional sweetener to the ganache because I prefer my desserts not as sweet as some folks do, but if you want a sweeter ganache feel free to try adding some powdered sweetener such as THM Gentle Sweet. This may make the ganache more gritty.
Trim Healthy Mama recommends using the Light Rye Wasa crackers in a THM S setting because they’re the lowest in carbs of the Wasa crackers, but I actually usually use the multigrain variety because that’s all I can find at Walmart. Some traditional grocery stores might have more Wasa options, or you can find them online.
I haven’t tried this, but I wonder how it would work to toast a few low-carb tortillas and try layering them in the pan in place of the crackers (maybe 2-3 layers since they’re thinner?). Maybe they would give a texture closer to the original saltines? If someone is brave enough to try this, let me know how it goes! I don’t know that my waistline can handle testing this recipe again this year. XD
This recipe was originally published Dec 14, 2015. It got a little update in December 2025! You can find the original on page 305 of my first cookbook, Necessary Food.
- Prep Time: 15 mins
- Cook Time: 22 mins
- Category: Candy
- Method: Baked
- Cuisine: THM S, low carb, sugar free





