Grandma's 7-Layer Cookies (Magic Bars)

This recipe comes straight from my grandma's handwritten cards, and it's one of those classic holiday desserts that everyone knows. The original instructions were literally just “mix everything together and bake,” but the layered version holds together better and keeps that vintage flavor. These bars are sweet, chewy, and a little messy in the best possible way. If you like coconut, chocolate, and butterscotch together, this is the one.

Why You'll Love These Bars

These bars are simple, nostalgic, and taste exactly like the kind of dessert that shows up at every family gathering. The graham cracker crust keeps everything sturdy, the sweetened condensed milk binds the layers, and the chocolate, butterscotch, coconut, and nuts melt into each other as they bake. It's an old family recipe that still works well today, with a graham-cracker crust adaptation that makes the bars easier to slice and serve.

My Take

This was one of the first recipes I pulled from my grandma's recipe box when I started going through her old holiday cookies. Her version didn't include a crust and everything was mixed in one bowl. I tried it both ways, and while the mixed version is true to her card, I prefer the crust for structure. The flavor is the same either way—the crust just makes slicing and serving easier. For another recipe from the family collection, try my Pennsylvania Dutch Sand Tart Cookies.

Ingredients

The seven classic components are butter, graham-cracker crumbs, sweetened condensed milk, chocolate chips, butterscotch chips, coconut, and chopped walnuts or pecans. The butter and crumbs form the crust; the remaining ingredients are layered on top without stirring. Measure the chip amounts stated in recipe card 381 rather than using an entire package, because package sizes vary.

Tools I Use for This Recipe

USA Pan 9×13-Inch Rectangular Cake Pan

A suggested option for baking the layered bars evenly in the 9×13-inch size used by this recipe.

OXO Good Grips Silicone Spatula Set

A suggested option for spreading the condensed milk gently without disturbing the graham-cracker crust.

Spring Chef Stainless Steel Cooling Rack

A suggested option for cooling the pan completely so the bars firm up before slicing.

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Seven-Layer Assembly Guide

Press the buttered graham-cracker crumbs firmly into the prepared 9×13-inch pan. Pour the sweetened condensed milk evenly over the crust, then add the chocolate chips, butterscotch chips, coconut, and chopped nuts in layers without stirring.

Bake at 350°F for 25–30 minutes, until the edges are golden brown and the center looks set. The bars continue to firm as they cool, so let them cool completely in the pan on a wire rack before slicing into 24 bars.

Tips for Success

Use the chip amounts stated in recipe card 381 rather than assuming one modern package equals the required quantity. Package sizes vary. For cleaner slices, cool the bars completely or chill them briefly before cutting. A small sprinkle of sea salt before baking is optional for a sweet-salty finish.

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Grandma's 7-Layer Cookies (Magic Bars)

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A nostalgic dessert straight from my grandma's handwritten recipe box—modernized just enough to keep the structure without losing the charm. Sweetened condensed milk, chocolate, butterscotch, coconut, and nuts come together in one of the most iconic bar cookies of all time.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Ingredients

  

1x2x3x?

• 1 1/2 cups graham cracker crumbs
• 1/2 cup butter melted
• 1 can sweetened condensed milk 14 oz (Eagle Brand)
• 1 cup flaked coconut
• 1 package semi-sweet chocolate bits about 1–1 1/4 cups
• 1 package butterscotch bits about 1–1 1/4 cups
• 1 1/2 cups chopped nuts walnuts or pecans

Equipment

• 1 Mixing Bowl
• 1 Measuring Cups and Spoons
• 1 9×13-inch Baking Pan
• 1 Spatula
• 1 Wire Rack

Method

 

1. Preheat & Prepare Pan

   Preheat oven to 350°F (175°C). Grease a 9×13-inch baking pan or line it with parchment paper for easy removal.
2. Make the Crust

   In a mixing bowl, combine graham cracker crumbs and melted butter.

   Press the mixture firmly and evenly into the bottom of the prepared pan to form a crust.
3. Add Sweetened Condensed Milk

   Pour the sweetened condensed milk evenly over the crust. Use a spatula or back of a spoon to gently spread it if needed.
4. Layer the Toppings

   In this order, sprinkle evenly over the top:

   Chocolate chips

   Butterscotch chips

   Flaked coconut

   Chopped nuts

   Do not stir—this is a layered bar.
5. Bake

   Bake for 25–30 minutes, or until the edges are golden brown and the center is set.

   Bars will firm up more as they cool.
6. Cool & Cut

   Let cool completely in the pan on a wire rack. Once fully cooled, slice into 24 bars using a sharp knife.

Nutrition

Calories: 181kcalCarbohydrates: 15gProtein: 3gFat: 13gSaturated Fat: 6gPolyunsaturated Fat: 4gMonounsaturated Fat: 2gTrans Fat: 0.2gCholesterol: 16mgSodium: 88mgPotassium: 123mgFiber: 1gSugar: 11gVitamin A: 164IUVitamin C: 1mgCalcium: 60mgIron: 1mg

Notes

Grandma's Original Version: Her handwritten instructions said to mix everything together and bake it in one layer. It works, but the bars hold better with a graham cracker crust.

Chip Quantities: Older recipes often assumed 6 oz packages of chips. Today's standard packages are 10–12 oz (roughly 1 to 1¼ cups). Use your preference for richness.

Customization Tip: Add a sprinkle of sea salt on top before baking for a more modern sweet-salty finish.

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