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Low FODMAP Chocolate Chunk Kahlua Buttercream Bars

These Low FODMAP Chocolate Chunk Kahlua Buttercream Bars first appeared in one of my books, A Baker’s Field Guide to Chocolate Chip Cookies. They have always been a crowd fave and needed a FODMAP IT! makeover. They start with a brown sugar dough filled with chocolate chunks and flavored with instant espresso powder. After they come out of the oven, they are brushed with our version of Low FODMAP Coffee Liqueur. Then, a rich, creamy frosting, also flavored with espresso and coffee liqueur tops them off. 

Low FODMAP Serving Size Info: Makes 20 bars; 20 servings; serving size 1 bar

Course: Dessert, Snack, Treat
Cuisine: American
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Makes: 20 Servings
Calories: 281 kcal
Author: Dédé Wilson





  1. For the Bars: Preheat oven to 350°F (180°C). Coat an 8-inch (20 cm) square pan with nonstick spray. Line pan with parchment paper, overhanging two sides and spray parchment.

  2. Whisk flour, baking powder and salt together in a small bowl to aerate and combine; set aside.
  3. Whisk together the melted butter, brown sugar, espresso powder and vanilla. Then whisk in the egg, blending well. Stir in flour mixture, mixing just until blended. Make sure mixture is cool, then stir in chocolate chunks. Spread evenly into prepared pan.

  4. Bake for about 30 minutes or until bars are light golden brown, are slightly puffed and the edges have begun to come away from the pan sides. A toothpick inserted in the center will come out with a few moist crumbs clinging. Immediately brush with 1 tablespoon Low FODMAP Coffee Liqueur. Place pan on rack until cool.
  5. For the Frosting: Place all frosting ingredients in bowl and beat with electric mixer on low-medium speed until it starts to become creamy. Increase speed to high and beat until light, creamy and smooth. Spread frosting evenly over cooled brownies. Cut into 20 bars (5 by 4 grid). Store for up to 4 days at room temperature in airtight container in single layer.



FODMAP Information

Our recipes are based on Monash University and FODMAP Friendly science.

  • Chocolate: Monash University has lab tested dark, milk and white chocolate all have low FODMAP amounts: 85% dark at 20 g; dark at 30 g; milk at 20 g; white at 25 g.
  • Eggs: Eggs are high in protein and do not contain carbohydrates, according to Monash University.
  • Sugar: Monash University and FODMAP Friendly have both lab tested white, granulated sugar. Monash states that a Green Light low FODMAP serving size of white sugar is 1/4 cup (50 g). FODMAP Friendly simply states that they have tested 1 tablespoon and that it is low FODMAP. Regular granulated white sugar is sucrose, which is a disaccharide made up of equal parts glucose and fructose. Sucrose is broken down and absorbed efficiently in the small intestine.
  • Vodka: Both Monash University and FODMAP Friendly have lab tested vodka. Monash University reports that it is low FODMAP Green Light at a 30 ml serving size. FODMAP Friendly gives it a “Pass” at 1 shot or 30 ml.

Please always refer to the Monash University & FODMAP Friendly smartphone apps for the most up-to-date lab tested information. As always, your tolerance is what counts; please eat accordingly. The ultimate goal of the low FODMAP diet is to eat as broadly as possible, without triggering symptoms, for the healthiest microbiome.

Nutrition Facts
Low FODMAP Chocolate Chunk Kahlua Buttercream Bars
Amount Per Serving
Calories 281 Calories from Fat 117
% Daily Value*
Fat 13g20%
Sodium 41mg2%
Potassium 6mg0%
Carbohydrates 41g14%
Fiber 1g4%
Sugar 34g38%
Protein 1g2%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.