I love this recipe because the cookie dough comes together with basic baking ingredients and doesn’t require rolling, chilling, or individual cookie shaping. I simply press the dough into the pan and bake it as one large cookie layer.
I also like the combination of textures. The cookie base is buttery and tender, while the chocolate creates a smooth, rich topping and the chopped nuts add a pleasant crunch.
Another reason I make these cookies during busy seasons is that they’re easy to prepare ahead of time. Once the chocolate has hardened and I’ve cut the cookies into triangles, I can store them until I’m ready to serve or package them.
Ingredients
(Note: All ingredient amounts are listed in the recipe card below.)
1 cup unsalted butter softened
⅔ cup granulated sugar
½ teaspoon salt
1 large egg room temperature
1 tablespoon vanilla extract
2 cups all-purpose flour
2 cups chocolate chips milk or semi-sweet
¼ cup mixed nuts chopped – like walnuts and pecans
Directions
I preheat the oven to 350 degrees F.
I line a baking pan with parchment paper so the baked cookie layer is easier to remove and cut.
In a mixing bowl, I beat the softened butter until it becomes light and fluffy.
I add the granulated sugar and salt, then continue beating until everything is well combined and fluffy.
I beat in the room-temperature egg and vanilla extract until the mixture is smooth and well combined.
I gradually add the all-purpose flour and beat until the cookie dough comes together.
I press the cookie dough evenly into the prepared pan, making sure the thickness is as uniform as possible.
I bake the cookie layer for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
I transfer the pan to a wire rack and allow the cookie layer to cool completely before adding the topping.
While the cookie layer cools, I chop the mixed nuts and set them aside.
I place the chocolate chips in a microwave-safe bowl and melt them carefully, stirring regularly until smooth.
I pour the melted chocolate over the cooled cookie layer and spread it evenly with an offset spatula.
I immediately sprinkle the chopped nuts over the chocolate while it is still soft so they stick to the topping.
I let the chocolate topping harden for about 15 minutes.
Once the topping has set, I cut the cookies into triangles.
I transfer the finished Triangle Cookies to an airtight container for storage.
Servings and Timing
I get approximately 36 cookies from this recipe, although the exact number can vary depending on how large I cut the triangles.
The original recipe lists 5 minutes of prep time, 10 minutes of cook time, and 15 minutes of total time. However, the detailed directions specify baking the cookie layer for 20-25 minutes and allowing additional time for cooling and for the chocolate topping to harden. When I make these cookies, I allow enough extra time for those cooling and setting stages before cutting and serving.
Variations
For a darker, less sweet chocolate flavor, I use semi-sweet or dark chocolate chips instead of milk chocolate. When I want a sweeter and creamier topping, I use milk chocolate.
I can also change the nuts depending on what I have available. Walnuts and pecans work especially well, but I can use only one variety instead of a mixture.
For a nut-free version, I leave the mixed nuts off entirely. I can keep the chocolate topping plain or sprinkle it with another nut-free topping that complements the cookies.
When I want a more decorative finish for holidays, I drizzle a contrasting melted chocolate over the hardened chocolate layer. White chocolate over semi-sweet chocolate creates an especially noticeable contrast.
I can also experiment with the shape. Triangles give these cookies their signature appearance, but I can cut the baked layer into squares, rectangles, or smaller bite-sized pieces when that better suits how I plan to serve them.
Storage/Reheating
I store Triangle Cookies in an airtight container once the chocolate topping has completely hardened. I keep the layers separated with parchment or wax paper when stacking them so the chocolate surfaces stay neat.
For short-term storage, I keep the cookies at room temperature in a cool, dry place. If my kitchen is particularly warm and the chocolate starts becoming soft, I refrigerate the cookies instead.
I can also refrigerate them in an airtight container for longer storage. Before serving refrigerated cookies, I let them sit at room temperature briefly so the cookie base and chocolate topping lose some of their firmness.
For longer storage, I freeze the completely cooled and set cookies in a freezer-safe airtight container, separating the layers with parchment paper. I thaw them before serving.
I normally don’t reheat Triangle Cookies because warming them can melt the chocolate topping. I serve them at room temperature for the best combination of buttery cookie, firm chocolate, and crunchy nuts.
FAQs
Can I make Triangle Cookies ahead of time?
Yes. I like making them ahead because they store well once the chocolate has completely set. I keep them in an airtight container until I’m ready to serve them.
Can I use salted butter instead of unsalted butter?
I can use salted butter when necessary, but I prefer unsalted butter because it gives me better control over the salt level. If I substitute salted butter, I may reduce or omit the additional salt depending on how salty the butter is.
Should the butter be softened before I start?
Yes. I use softened butter because it beats more easily with the sugar and helps create a smooth, fluffy cookie mixture. I avoid using completely melted butter because it changes the consistency of the dough.
Can I use semi-sweet chocolate chips?
Yes. The recipe works with milk or semi-sweet chocolate chips. I choose semi-sweet chocolate when I want the topping to balance the sweetness of the cookie base.
Do I have to add nuts?
No. I can leave the nuts off if I prefer plain chocolate-topped Triangle Cookies or need a nut-free version. The cookies will still have plenty of flavor from the buttery vanilla base and chocolate.
Why should I cool the cookie layer before adding the chocolate?
I let the cookie layer cool completely so the topping sets properly. If the cookie base is still very warm, the chocolate can remain excessively soft and take longer to harden.
How do I melt the chocolate chips without burning them?
I microwave the chocolate chips in short intervals and stir between each interval. As the chocolate begins melting, I reduce the heating time and rely on stirring to melt the remaining pieces smoothly.
When should I add the chopped nuts?
I sprinkle the chopped nuts over the chocolate immediately after spreading it. The chocolate needs to remain soft enough for the nuts to adhere before the topping hardens.
How do I get clean triangle shapes?
I let the topping set before cutting, then use a sharp knife to make straight cuts. I wipe the knife between cuts when necessary to keep the edges looking neat.
Can I freeze Triangle Cookies?
Yes. I freeze the cookies only after they have cooled completely and the chocolate has fully hardened. I arrange them in an airtight freezer-safe container with parchment paper between the layers and thaw them before serving.
Conclusion
Triangle Cookies are one of those straightforward desserts I can rely on when I want something homemade without complicated decorating or individual cookie shaping. I love the combination of a buttery vanilla cookie base, smooth chocolate topping, and crunchy chopped nuts.
Buttery vanilla cookie bars topped with smooth melted chocolate and crunchy chopped nuts, then cut into festive triangles. These easy cookies are perfect for holidays, parties, cookie trays, and homemade gifts.
Author:Amy
Prep Time:15 minutes
Cook Time:20-25 minutes
Total Time:50-55 minutes
Yield:36 cookies
Category:Dessert
Method:Baking
Cuisine:American
Diet:Vegetarian
Ingredients
1 cup unsalted butter, softened
⅔ cup granulated sugar
½ teaspoon salt
1 large egg, room temperature
1 tablespoon vanilla extract
2 cups all-purpose flour
2 cups chocolate chips, milk or semi-sweet
¼ cup mixed nuts, chopped, such as walnuts and pecans
Instructions
Preheat the oven to 350 degrees F and line a baking pan with parchment paper.
Beat the softened butter in a mixing bowl until light and fluffy.
Add the granulated sugar and salt and continue beating until well combined and fluffy.
Beat in the egg and vanilla extract until smooth and well combined.
Gradually add the all-purpose flour and beat until the cookie dough comes together.
Press the dough evenly into the prepared pan, keeping the thickness as uniform as possible.
Bake for 20-25 minutes, or until lightly golden and a toothpick inserted into the center comes out clean.
Transfer the pan to a wire rack and allow the cookie layer to cool completely.
Chop the mixed nuts and set aside.
Place the chocolate chips in a microwave-safe bowl and microwave in short intervals, stirring regularly, until melted and smooth.
Spread the melted chocolate evenly over the cooled cookie layer with an offset spatula.
Immediately sprinkle the chopped nuts evenly over the soft chocolate.
Allow the chocolate topping to set for about 15 minutes.
Once the topping has hardened, use a sharp knife to cut the cookies into triangles.
Transfer the Triangle Cookies to an airtight container for storage or serve at room temperature.
Notes
Use semi-sweet or dark chocolate for a richer, less sweet topping, or milk chocolate for a sweeter, creamier flavor.
Walnuts, pecans, or a mixture of both work well. For a nut-free version, omit the nuts or replace them with a suitable nut-free topping.
For a decorative holiday finish, drizzle the hardened topping with contrasting melted chocolate.
For clean cuts, allow the chocolate to set before slicing and wipe the knife between cuts as needed.
Store in an airtight container in a cool, dry place with parchment or wax paper between layers. Refrigerate if the room is warm.
For longer storage, freeze fully cooled cookies in an airtight freezer-safe container with parchment paper between layers, then thaw before serving.
Avoid reheating because the chocolate topping can melt. Serve at room temperature for the best texture.
