Spelt chocolate mint brownie bars stack a fudgy cocoa base, a cool mint layer, and a thin dark chocolate shell into one bar you can cut clean. Spelt flour keeps the base tender without losing structure, so the layers hold when you slice.
The bake takes about 25 to 28 minutes at 175 C / 350 F. Pull the pan out when the center looks set but a toothpick still shows a few moist crumbs, not wet batter.
The mint layer sets in the fridge while the base cools, so the timing stays simple. You build the bars in three steps and let the fridge do the rest.
These bars work well for a make-ahead dessert plate or a lunchbox treat. The spelt base has a slightly nutty edge that plain flour doesn’t give you.
Why You’ll Love This Recipe
- Fudgy spelt base with a nutty edge
- Cool mint layer sets clean in the fridge
- Thin chocolate shell snaps when you cut it
- Make-ahead dessert that holds well for days

Ingredient Notes
- Spelt flour: Use light or white spelt flour for the softest crumb. Whole spelt works too but gives a denser, slightly heavier base.
- Cocoa powder: Natural or Dutch-process both work here. Dutch-process gives a darker color and slightly milder flavor.
- Peppermint extract: A little goes a long way. Start with 1 teaspoon and taste the mint mixture before adding more.
- Powdered sugar: Sift it before mixing to avoid lumps in the mint layer. Confectioners’ sugar and icing sugar are the same thing.
- Dark chocolate chips: Use 50 to 60 percent cocoa chips for a shell that isn’t overly sweet next to the mint layer.

Spelt Chocolate Mint Brownie Bars: Fudgy, Cool Layers
Description
These spelt chocolate mint brownie bars layer a fudgy spelt cocoa base under a cool mint filling and a thin dark chocolate shell that snaps when cut.
Ingredients
Brownie Base
Mint Layer
Chocolate Topping
Instructions
Make the Brownie Base
- Heat the oven to 175 C / 350 F. Line a 20 cm / 8-inch square baking pan with parchment, leaving an overhang on two sides.
- Whisk the melted butter and granulated sugar together in a mixing bowl until combined. Add the eggs and vanilla extract, whisking until smooth.
- Add the spelt flour, cocoa powder, baking powder, and salt. Stir with a spatula just until no dry streaks remain; the batter will be thick.
- Spread the batter into the pan in an even layer. Bake for 25 to 28 minutes, until the center looks set and a toothpick comes out with a few moist crumbs.
- Cool the base in the pan on a rack for 30 minutes before adding the mint layer.
Add the Mint Layer
- Beat the softened butter and powdered sugar together in a clean bowl until the mixture looks sandy.
- Add the milk one tablespoon at a time along with the peppermint extract, beating until the layer turns smooth and spreadable. Add food coloring if using.
- Spread the mint layer evenly over the cooled brownie base. Chill in the fridge for 30 minutes, until firm to the touch.
Finish with Chocolate
- Melt the chocolate chips and butter together in a microwave-safe bowl in 20-second bursts, stirring between each, until smooth.
- Pour the melted chocolate over the chilled mint layer, tilting the pan to spread it into an even layer.
- Chill the pan for 30 minutes, until the chocolate shell sets firm and no longer looks wet.
- Lift the bars out using the parchment overhang. Cut into 16 bars with a warm, dry knife, wiping the blade between cuts.
Nutrition Facts
Servings 16
- Amount Per Serving
- Calories 304kcal
- % Daily Value *
- Total Fat 14g22%
- Saturated Fat 8g40%
- Cholesterol 50mg17%
- Sodium 60mg3%
- Potassium 90mg3%
- Total Carbohydrate 39g13%
- Dietary Fiber 3g12%
- Sugars 31g
- Protein 3g6%
- Vitamin A 250 IU
- Calcium 20 mg
- Iron 1.2 mg
- Vitamin D 5 IU
- Vitamin E 0.5 mg
- Vitamin K 1 mcg
- Thiamin 0.05 mg
- Riboflavin 0.05 mg
- Niacin 0.5 mg
- Vitamin B6 0.02 mg
- Folate 15 mcg
- Vitamin B12 0.1 mcg
- Phosphorus 60 mg
- Magnesium 15 mg
- Zinc 0.4 mg
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
Note
Additional Notes
- Cool brownie base fully, about 30 minutes, before spreading the mint layer.
- Chill mint layer 30 minutes minimum before adding the chocolate topping.
- Cut bars with a warm, dry knife for clean layers.
- Store assembled bars in the fridge, not at room temperature.
