Spelt Chocolate Mint Brownie Bars: Fudgy, Cool Layers

Servings: 16 Total Time: 1 hr 45 mins Difficulty: Easy
Fudgy spelt brownie base, cool mint layer, thin chocolate topping
Overhead shot of stacked spelt chocolate mint brownie bars showing green mint layer and glossy chocolate shell on a wooden board View Gallery 2 photos

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
Spreading pale green mint filling over a cooled fudgy brownie base in a parchment-lined square baking pan

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.
Two brownie bars on a small plate beside a glass of milk and a linen napkin on a kitchen table

Spelt Chocolate Mint Brownie Bars: Fudgy, Cool Layers

Difficulty: Easy Prep Time 20 mins Cook Time 25 mins Rest Time 60 mins Total Time 1 hr 45 mins
Cooking Temp: 175  C Servings: 16 Estimated Cost: £ 1.50 Calories: 304

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

Cooking Mode Disabled

Brownie Base

Mint Layer

Chocolate Topping

Instructions

Make the Brownie Base

  1. 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.
  2. Whisk the melted butter and granulated sugar together in a mixing bowl until combined. Add the eggs and vanilla extract, whisking until smooth.
  3. 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.
  4. 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.
  5. Cool the base in the pan on a rack for 30 minutes before adding the mint layer.

Add the Mint Layer

  1. Beat the softened butter and powdered sugar together in a clean bowl until the mixture looks sandy.
  2. 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.
  3. 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

  1. Melt the chocolate chips and butter together in a microwave-safe bowl in 20-second bursts, stirring between each, until smooth.
  2. Pour the melted chocolate over the chilled mint layer, tilting the pan to spread it into an even layer.
  3. Chill the pan for 30 minutes, until the chocolate shell sets firm and no longer looks wet.
  4. 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.
Keywords: spelt brownie bars, chocolate mint brownies, spelt chocolate brownies, mint brownie bars, spelt dessert

Equipment

  • 20 cm / 8-inch square baking pan
  • mixing bowls
  • hand mixer or whisk
  • offset spatula
  • parchment paper
  • microwave-safe bowl

Tips

  • Cool the brownie base fully before adding the mint layer so it doesn't melt into the batter.
  • Chill the mint layer for at least 30 minutes before pouring the chocolate topping so it sets firm.
  • Use a warm, dry knife to cut the bars for clean edges through the chocolate shell.
  • Measure peppermint extract carefully since a few extra drops turn the mint layer sharp instead of soft.
  • Line the pan with parchment on all sides so the bars lift out without cracking the top.

Variations

  • Swap peppermint extract for spearmint extract for a softer, less sharp mint flavor.
  • Fold chopped fresh mint leaves into the mint layer for flecks of color and texture.
  • Use white chocolate instead of dark for the topping if you prefer a sweeter finish.

Storage and Reheating

Spelt chocolate mint brownie bars keep for 4 to 5 days in an airtight container in the fridge. The chocolate shell stays firm and the mint layer stays cool and set at fridge temperature.

There's no reheating step here, since the bars are meant to be eaten cold or at room temperature. Let a bar sit out for 10 minutes before serving if you want the mint layer to soften slightly.

For longer storage, freeze the bars without the chocolate topping for up to 2 months. Add the melted chocolate shell fresh after thawing so it stays glossy instead of dull.

Serving Suggestions

Serve spelt chocolate mint brownie bars straight from the fridge with black coffee or mint tea, since both cut through the sweetness of the mint layer.

Add fresh raspberries or a small scoop of vanilla ice cream on the side for a simple dessert plate. The bars already carry a cocoa base, a mint filling, and a chocolate shell, so keep the extras light.

Cut smaller squares for a party tray, since the layers make each bite feel richer than a plain brownie.

Frequently Asked Questions

Expand All:

How do I know when the brownie base is done baking?

The brownie base is done when the center looks set and a toothpick comes out with a few moist crumbs, not wet batter, usually around 25 to 28 minutes at 175 C / 350 F. The edges pull slightly from the pan sides too. Pull it out then, since spelt batter firms up fast as it cools.

Can I use all-purpose flour instead of spelt flour in this brownie base?

You can use all-purpose flour in place of spelt flour, though the base loses the slight nutty flavor spelt gives it. Swap it in at a 1:1 ratio since both flours absorb liquid in a similar way. The texture stays fudgy either way, just a touch less complex in flavor.

How long do spelt chocolate mint brownie bars keep in the fridge?

These bars keep for 4 to 5 days in an airtight container in the fridge. The chocolate shell stays firm and the mint layer stays cool and set at that temperature. Let a bar sit at room temperature for 10 minutes before eating for a softer bite.

What pairs well with spelt chocolate mint brownie bars?

Black coffee or mint tea pair well, since both cut through the sweetness of the mint layer. Fresh raspberries or a small scoop of vanilla ice cream on the side work too. Keep any extras simple since the bars already carry three distinct layers on their own.

Are spelt chocolate mint brownie bars gluten-free?

No, these bars are not gluten-free, since spelt flour contains gluten. Spelt is easier to digest for some people than wheat, but it isn't safe for anyone with celiac disease or a gluten intolerance. Swap in a certified gluten-free flour blend if you need a gluten-free version.

Why is my mint layer runny instead of firm?

A runny mint layer usually means the butter was too soft or the powdered sugar wasn't fully mixed in before you added milk. Add more powdered sugar, a tablespoon at a time, until the mixture holds its shape when spread. Chilling it for 30 minutes also helps it firm up before the chocolate topping goes on.

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