Gluten-Free Oat Fudge Bars with Chocolate
Chewy oat cookie base topped with smooth chocolate fudge and oat crumbles. Brown sugar and butter create a rich, slightly caramel flavor that complements the bittersweet chocolate layer. The oat flour keeps these bars naturally gluten-free while maintaining a tender crumb. Serve warm with coffee or as a lunchbox treat. This version uses condensed milk for silky fudge that sets to the perfect chewy texture without requiring extra ingredients or complicated techniques.
Ingredients
- 1 cup butter, softened
- 1 cup brown sugar, packed
- ½ cup granulated white sugar
- 2 large eggs
- 3 cups old-fashioned oats, large flake
- 2 cups oat flour
- 1 teaspoon baking soda
- ¾ teaspoon fine sea salt
- 1 ¼ cups sweetened condensed milk
- 12 oz semi-sweet chocolate chipsdark chocolate chips1:1flavor
deeper chocolate taste
- 1 teaspoon vanilla extract
- 1 tablespoon butter
Instructions
- 1
Preheat oven to 350F.
- 2
Line 8x12 baking dish with parchment paper.
- 3
Beat softened butter and both sugars on medium speed until creamy. Add eggs and beat until light and fluffy.
- 4
Stir together oats, oat flour, baking soda, and salt in separate bowl.
- 5
Add oat mixture to butter mixture and beat until well combined and sticky dough forms.
- 6
Set aside 1/3 of dough. Press remaining dough into bottom of baking dish, dampening hands as needed. Press dough slightly up sides to form ridge.
- 7
Combine condensed milk and chocolate chips in small saucepan over medium-low heat. Stir until melted and smooth.
- 8
Remove from heat and stir in butter and vanilla.
- 9
Spread fudge evenly over base dough, leaving about half inch around edges.
- 10
Break reserved dough into small clumps, flatten, and scatter over fudge. Leave some fudge exposed.
- 11
Bake 20-22 minutes until top oats turn light golden.
- 12
Cool completely before cutting into squares.
Tips
Dampen hands with water while pressing dough to prevent sticking and achieve even thickness in baking dish.
Don't cover fudge completely with oat crumbles; visible fudge creates appealing appearance and prevents over-browning.
Good to Know
Airtight container at room temperature up to 5 days. Refrigerate up to 1 week.
Prepare through step 8 (fudge made and cooled) up to 24 hours ahead. Assemble and bake when ready.
Serve at room temperature or warm. Pairs well with coffee, milk, or ice cream.
Common Mistakes
Don't skip dampening hands; dry hands tear sticky dough and create uneven base.
Don't overbake; bars continue to set as they cool and will be dry if oats brown too deeply.
Don't spread fudge all the way to edges; dough ridge prevents runoff during baking.
Substitutions
Dairy-Free Swaps
Gluten-Free Swaps
General Alternatives
FAQ
Can I substitute all-purpose flour for oat flour?
Yes, use the same amount (2 cups all-purpose flour). Bars will no longer be gluten-free but texture remains identical. All-purpose creates slightly crisper edges.
What if my chocolate fudge is grainy or seizes?
Remove from heat immediately and whisk in 1 tablespoon of milk or cream to smooth it out. Overheating condensed milk causes graininess; keep heat at medium-low.
Can I freeze these bars?
Yes, freeze up to 3 months in airtight container. Thaw at room temperature 1-2 hours before serving. They maintain chewy texture through freezing.