These gluten-free seven-layer bars are everything you want in a dessert: ultra-decadent, sweet and salty, crunchy and fudgy. The soft, brownie-like base comes together quickly, thanks to our Gluten-Free Double Chocolate Cookie Mix. On top, pretzels, nuts, and chocolate chips add texture and sweetness, all bound together with gooey sweetened condensed milk. Make these crowd-pleasing bars for any gathering — no one will guess they’re gluten-free. Best of all, they’re easy, failproof, and ready in about an hour.
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Preheat the oven to 350°F. Line an 8" or 9" square pan with a parchment sling or reusable silicone liner, then lightly grease the sides of the pan.
In a large bowl using a flexible spatula, vigorously stir the mix, butter, and egg until fully combined, about 1 minute. The dough will be soft and sticky.
Transfer the dough to the prepared pan, then use your greased hands or an offset spatula to press it into an even layer.
Bake for 15 to 20 minutes, or until the cookie is set around the edges.
Remove the pan from the oven and top with the chips, coconut, nuts, and pretzels. Pour the sweetened condensed milk evenly over the surface to cover. Lightly sprinkle with flaky sea salt, if desired.
Return to the oven and bake for an additional 25 to 30 minutes, or until the sweetened condensed milk has caramelized around the edges and is lightly browned in the center.
Remove the bars from the oven and transfer to a wire rack to cool, still in the pan, until they reach room temperature, 1 to 1 1/2 hours. Place the bars in the refrigerator for 30 minutes to chill before removing them from the pan, cutting, and serving. (The bars are easiest to cut when the crust is cold.)
Store any leftover seven-layer bars, well covered, in the refrigerator for up to 1 week; freeze for longer storage.
Tips from our Bakers
Be aware: Some of your baking ingredients can be a hidden source of gluten. Learn more at our blog post: For gluten-free baking, think beyond just flour. For additional information on King Arthur-produced products, read the complete details of our allergen program, including our contact-prevention practices.