Okay, real talk. Santa’s Trash Cookie Bars are one of those bakes I keep coming back to year after year. The first time, I totally winged it using whatever was left in the pantry (after a long day of holiday shopping and dodging chaos at the store—why are sprinkles always on sale and yet always sold out?). I swear, the combo shouldn’t work, but it really absolutely does. Now the kids ask for these even when it’s not remotely the holiday season. I once caught my husband eating the last one at 2am. Didn’t even save me a bite.
Why These Cookie Bars Are a Staple (At Least In My House)
I make these when I’ve got leftover candy, pretzels, or let’s face it—pretty much any random snack food. My family goes nuts for the mix of chocolate, crunch, and a hint of salty—like trail mix, but so much better. (Honestly, digging pretzels out of the dough feels like you’re a kid again.) Full truth: I tried skipping the sprinkles once, and my daughter acted like I’d ruined Christmas. Lesson learned.
Here’s What You’ll Need (and Maybe Swap In)
- ½ cup unsalted butter, melted (grandma swears by salted, I pretend to listen)
- 1 cup brown sugar, packed (I’ve used light and dark, both do the trick—the flavor shifts just a bit though)
- 1 egg
- 1 teaspoon vanilla extract (if you’re out, a little almond extract isn’t awful; just different)
- 1 cup all-purpose flour (I’ve squeezed by with bread flour—doesn’t ruin it)
- ½ teaspoon baking powder
- ¼ teaspoon baking soda (I’ve left it out completely before, but the texture was funny)
- ¼ teaspoon salt (skip if you’re using salted butter, or don’t, I sometimes forget)
- ½ cup M&Ms (I use whatever’s lurking in the Halloween stash)
- ½ cup crushed pretzels (thick twisty pretzels or the tiny sticks, honestly? never noticed a difference)
- ½ cup semi-sweet chocolate chips (milk or dark chocolate chips are great too)
- ¼ cup holiday sprinkles (but the red and green ones make it look festive; rainbow's fun in July!)
- ¼ cup potato chips, crushed (optional, but trust me, adds major crunch factor—try kettle chips if you like it extra crispy)
Let’s Get Baking (it’s Easier Than It Seems)
- Preheat your oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper—if you forget, just grease it well. (Though, fair warning, getting the bars out afterward is like wrestling a bear.)
- In a decent-sized bowl, pour the melted butter over your brown sugar and mix them up until smooth. This is where you get that gorgeous caramelly base. I usually use a big wooden spoon, but a spatula works too. Who needs more dishes?
- Crack in the egg and stir it in, then add the vanilla. If you drop a little eggshell in, just fish it out—happens to the best of us.
- Dump in the flour, baking powder, baking soda, and salt. Stir till a dough forms; don’t stress if it looks a little lumpy at this stage—it sorts itself out later.
- Add M&Ms, chocolate chips, pretzels, sprinkles, and those potato chips if you’re feeling wild. Fold them in so every square has a bit of everything. This is the part where I usually sneak a few chocolate chips. Quality control, right?
- Spoon the dough into the pan and gently press it into the corners. (Hands work fine if you’re impatient; just don’t squish it to death.)
- Bake for 20-24 minutes, until golden brown on the edges. The middle might look just a bit soft—you want that. Overbaking makes them crumbly, which is fine for eating over the sink but not for serving.
- Cool completely in the pan (or as long as your willpower lasts) before lifting out and cutting into bars. I use a bread knife for neater slices, though I’ve been known to just dig in with my hands.
My Real Life Notes
- The dough looks pretty weird before baking—the mix ins clump up, but after baking all is forgiven.
- Actually, I think these taste better the next day, not that they’ve ever lasted that long at mine.
- If you swap in white chocolate chips, you might want to cut back a little sugar; they’re sweet as is.
- I once forgot the baking powder, and the bars still vanished. So, don’t panic if you do.
Variants I’ve Tried (Some Good, Some Regrettable)
- Peanut butter chips instead of chocolate—delicious
- Crushed cornflakes for the potato chips—surprisingly fun
- Raisins (just no, unless you’re my uncle Jim)
- Subbing out M&Ms for Reese’s Pieces—risked mutiny but I liked it
What If I Don’t Have the Right Pan?
I’ve baked these in a round cake tin (don’t judge), and while the corners get a little more crisp and misshapen, taste is still fab. The pan isn’t as important as lining, trust me.
How to Store These (Assuming They Survive)
Just slide them into an airtight container at room temp—they’ll hold up 4-5 days, in theory. In my house, they never make it past breakfast the next day. Freezing is possible, but I only ever did this once and kept sneaking a frozen chunk out anyway.
How I Like to Serve (And Why)
My family will eat them any way, any time. But if you can, try them warm with a scoop of vanilla ice cream. Or just a mug of cocoa. Christmas Eve tradition is they go out for Santa, but the plate is suspiciously empty by morning. Call it magic!
Pro Tips (Mostly Learned the Awkward Way)
- Don’t skip parchment—or you’ll be chiseling chunks out like a gold miner, not worth it.
- I once rushed the cooling step and tried to cut them straight from the oven. Huge messy disaster. Letting them set makes a difference.
- If you want extra sparkle, save a few sprinkles for the top right before baking—they’ll ‘pop’ a bit more.
FAQ—Because Friends Always Ask
- Can I double this recipe? Oh absolutely, just use a 9x13 pan and tack on a couple minutes of baking time.
- Can you use gluten free flour? I’ve tried it once. Worked decently—texture’s a smidge denser, but still tasty.
- Do I need to chill the dough? Nah—this is a fast, dump-and-bake situation. Who’s got time for more steps this time of year?
- Is there a way to make this nut free? Yup, just skip any nut toppings or flavored chips. Check your M&Ms, but regular ones are safe.
- How do I keep my bars from being dry? Pull ‘em out as soon as the edges brown but the middle is still kind of soft. Overbake and they’ll be dry as the Outback.
So, even if you accidentally drop a sprinkle trail across the kitchen floor, or forget to set a timer (guilty here), Santa’s Trash Cookie Bars are still going to be a hit. Maybe even try ‘em at Easter or just a random Tuesday? Anyway, let me know if you invent a wilder combo than mine—I’m always up for a bit of culinary chaos.
Ingredients
- ½ cup unsalted butter, melted (grandma swears by salted, I pretend to listen)
- 1 cup brown sugar, packed (I’ve used light and dark, both do the trick—the flavor shifts just a bit though)
- 1 egg
- 1 teaspoon vanilla extract (if you’re out, a little almond extract isn’t awful; just different)
- 1 cup all-purpose flour (I’ve squeezed by with bread flour—doesn’t ruin it)
- ½ teaspoon baking powder
- ¼ teaspoon baking soda (I’ve left it out completely before, but the texture was funny)
- ¼ teaspoon salt (skip if you’re using salted butter, or don’t, I sometimes forget)
- ½ cup M&Ms (I use whatever’s lurking in the Halloween stash)
- ½ cup crushed pretzels (thick twisty pretzels or the tiny sticks, honestly? never noticed a difference)
- ½ cup semi-sweet chocolate chips (milk or dark chocolate chips are great too)
- ¼ cup holiday sprinkles (but the red and green ones make it look festive; rainbow's fun in July!)
- ¼ cup potato chips, crushed (optional, but trust me, adds major crunch factor—try kettle chips if you like it extra crispy)
Instructions
-
1Preheat your oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper—if you forget, just grease it well. (Though, fair warning, getting the bars out afterward is like wrestling a bear.)
-
2In a decent-sized bowl, pour the melted butter over your brown sugar and mix them up until smooth. This is where you get that gorgeous caramelly base. I usually use a big wooden spoon, but a spatula works too. Who needs more dishes?
-
3Crack in the egg and stir it in, then add the vanilla. If you drop a little eggshell in, just fish it out—happens to the best of us.
-
4Dump in the flour, baking powder, baking soda, and salt. Stir till a dough forms; don’t stress if it looks a little lumpy at this stage—it sorts itself out later.
-
5Add M&Ms, chocolate chips, pretzels, sprinkles, and those potato chips if you’re feeling wild. Fold them in so every square has a bit of everything. This is the part where I usually sneak a few chocolate chips. Quality control, right?
-
6Spoon the dough into the pan and gently press it into the corners. (Hands work fine if you’re impatient; just don’t squish it to death.)
-
7Bake for 20-24 minutes, until golden brown on the edges. The middle might look just a bit soft—you want that. Overbaking makes them crumbly, which is fine for eating over the sink but not for serving.
-
8Cool completely in the pan (or as long as your willpower lasts) before lifting out and cutting into bars. I use a bread knife for neater slices, though I’ve been known to just dig in with my hands.
Approximate Information for One Serving
Nutrition Disclaimers
Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.
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