Skip to Content

Reese’s Pieces Protein Bars

Reese’s Pieces Protein Bars

This One's for the Snackers (and Candy Sneak Thieves)

So, the first time I threw together these Reese’s Pieces Protein Bars, my nephew walked in mid-stir and asked, "Are you making breakfast or dessert?" I said, yes. These bars were born out of one of those long afternoons where you open every cupboard hoping a snack appears. Instead, I grabbed everything half-open and, well, here we are. Rolling with what’s around is sort of my superpower in the kitchen (you should see what I can do with leftover rice, but—another story for another day).

Reese’s Pieces Protein Bars

Why You'll Love This (and Maybe Make It Weirdly Often)

I reach for this recipe when it’s too hot to turn the oven on, or I’m craving something that feels a bit like eating cookie dough but, you know, with more protein and fewer judgmental glances. My family pretty much demolishes these in a single afternoon, especially if I let them in on the construction—although I usually have to play candy police with the Reese’s Pieces. If you’ve got picky eaters, these'll still disappear. (I only recently convinced my partner that yes, you CAN use chunky peanut butter. Still negotiating on the chocolate chips...)

What You’ll Need (and No, You Don’t Need to Stress)

  • 1 and ½ cups rolled oats (I sometimes use quick oats if that’s all that’s left in the jar)
  • 1 cup vanilla protein powder (my grandma insists on chocolate, but honestly, any kind works fine)
  • ½ cup peanut butter (creamy or chunky, both work—I like chunky, but my partner disagrees every time)
  • ⅓ cup honey or maple syrup (maple gives a hint of Canada, but honey is usually closer at hand for me)
  • ¼ cup unsweetened almond milk (or regular milk, or just splash in some oat milk if you’re feeling trendy)
  • ⅔ cup Reese’s Pieces (plus a sneaky handful for “testing”...)
  • ¼ cup mini chocolate chips (optional, but I always add them for extra oomph—sometimes I just go wild and use white chocolate chips instead)
  • Pinch of salt (not strictly necessary, but it helps bring the flavors together)

Here’s How I Throw It All Together

  1. Start out by lining an 8x8 inch pan with parchment paper—trust me, parchment makes life easier. One time I grabbed wax paper thinking it was the same thing. Nope. Peeling bars off wax paper is as fun as stepping in puddles with socks on. Parchment only from now on.
  2. Grab your biggest mixing bowl and dump in your oats and protein powder. You’ll likely create a bit of a protein powder dust storm. Little tip: I just brush it off the counters later. (Or sometimes, I don’t. Who’s judging?)
  3. Add in the peanut butter, honey (or the good ol’ maple syrup), and your choice of milk. Sometimes peanut butter gets all stubborn and won’t budge—so I just microwave it for, like, 20 seconds and pretend it’s always been this easy. Stir everything together until it looks like a sticky, thick dough—kinda gloopy and awkward, but that’s perfect here.
  4. Now, time for the fun bit. Tip in your Reese’s Pieces, the chocolate chips (if you’re feeling it), and a little pinch of salt. This is where I always eat a couple candies, pretending it’s for "quality control." Mix until everything’s a rainbow-speckled, delicious mess.
  5. Scoop the mixture into your prepared pan and press it down firmly. You can get fancy and use a flat measuring cup, but, honestly, I use my (clean-ish) hands and call it rustic. If it looks lumpy or uneven, don’t sweat it—no one’s handing out points here.
  6. Stick the pan in your fridge and chill for at least an hour. If you’re like me and try to cut them early thinking you’re clever, learn from my "fun" mistake: you’ll end up with crumbly chaos. Waiting is your friend this time!
  7. Once things are nicely chilled, use the parchment to lift it all out and slice into bars, squares, trapezoids—whatever odd shapes happen. (I mean, I rarely get them evenly cut and nobody cares.) They keep in the fridge, but in my house? Gone by the next morning.

Notes from My Own Kitchen Trials

  • If you only have quick oats, it honestly works. Texture’s a little softer, but still good.
  • Getting peanut butter out of the measuring cup is easier if you lightly oil or wet the cup. Or just lick it out—wait, maybe not the right advice?
  • I once forgot the salt and it tasted a little dull, so now I always add a pinch, even if I forget everything else.
Reese’s Pieces Protein Bars

Variations I’ve Tried (Some Good, Some Naughty)

  • I’ve swapped chocolate chips for white ones—makes things sweeter and a bit fancier, I think.
  • Messed around with almond butter once—tasted fine, but didn’t hold up as well. Probably stick with peanut butter if you want classic bar texture.
  • Once tried a layer of jam in the middle. Tasted great but made things a bit gooey; might try swirling it in next time instead.

About the Tools: Improv Works

If you don’t have an 8x8 pan, use whatever you’ve got on hand. Smaller pan? Thicker bars. Oversize? Thinner, more bite-sized bars—life’s a tradeoff. No parchment? Well, try a hefty grease, but honestly, parchment’s just less pain.

How to Store (if You’ve Got Willpower)

Keep these in an airtight container in the fridge, and they’ll last for a week—maybe? They never last more than a day around here. If you want to freeze them, wrap individually and thaw in the fridge overnight. I've done it, but thawed texture is just so-so.

How I Like to Serve Mine

Perfect with a big mug of coffee in the morning (don’t judge), or chopped up into bite-sized squares for movie night. My nephew likes his with cold milk. Sometimes I just eat three pieces standing at the fridge like a goblin. All valid.

Reese’s Pieces Protein Bars

Pro Tips (AKA: "Oops, Won't Do That Again")

  • Letting the bars rest and chill really is vital. I’ve tried to speed things up in the freezer, but they always cut weird and get frosty.
  • If your mix feels dry, dribble in another spoonful of milk. If too runny—eh, toss in extra oats or protein powder.
  • Cut with a super sharp knife for less crumbling—if you care. I sometimes just break them apart by hand. Rustic and lazy, but fun.

FAQ: Stuff People Actually Ask Me

Can I use regular cow’s milk?
Yep, or oat milk, or even water if you’re desperate. Taste shifts a tiny bit but not as much as you’d think.
Are these gluten free?
If you use gluten free oats and double check your other ingredients, you’re golden. Otherwise, maybe not.
Can I just skip the protein powder?
Actually, yes! Bars will be a bit less structured and more treat-like, but still yummy.
Can I bake these?
You can, but why bother? The point is not needing to. I've baked them once and found they turn tougher than I like.
★★★★★ 4.60 from 41 ratings

Reese’s Pieces Protein Bars

yield: 12 bars
prep: 15 mins
cook: 0 mins
total: 50 mins
These no-bake Reese’s Pieces Protein Bars are packed with oats, creamy peanut butter, and a hefty dose of protein powder, all studded with colorful Reese’s Pieces and rich chocolate chips. The perfect fun, easy snack or breakfast bar when you’re craving something sweet and satisfying—but without turning on the oven.
Reese’s Pieces Protein Bars

Ingredients

  • 1 and ½ cups rolled oats (I sometimes use quick oats if that’s all that’s left in the jar)
  • 1 cup vanilla protein powder (my grandma insists on chocolate, but honestly, any kind works fine)
  • ½ cup peanut butter (creamy or chunky, both work—I like chunky, but my partner disagrees every time)
  • ⅓ cup honey or maple syrup (maple gives a hint of Canada, but honey is usually closer at hand for me)
  • ¼ cup unsweetened almond milk (or regular milk, or just splash in some oat milk if you’re feeling trendy)
  • ⅔ cup Reese’s Pieces (plus a sneaky handful for “testing”...)
  • ¼ cup mini chocolate chips (optional, but I always add them for extra oomph—sometimes I just go wild and use white chocolate chips instead)
  • Pinch of salt (not strictly necessary, but it helps bring the flavors together)

Instructions

  1. 1
    Start out by lining an 8x8 inch pan with parchment paper—trust me, parchment makes life easier. One time I grabbed wax paper thinking it was the same thing. Nope. Peeling bars off wax paper is as fun as stepping in puddles with socks on. Parchment only from now on.
  2. 2
    Grab your biggest mixing bowl and dump in your oats and protein powder. You’ll likely create a bit of a protein powder dust storm. Little tip: I just brush it off the counters later. (Or sometimes, I don’t. Who’s judging?)
  3. 3
    Add in the peanut butter, honey (or the good ol’ maple syrup), and your choice of milk. Sometimes peanut butter gets all stubborn and won’t budge—so I just microwave it for, like, 20 seconds and pretend it’s always been this easy. Stir everything together until it looks like a sticky, thick dough—kinda gloopy and awkward, but that’s perfect here.
  4. 4
    Now, time for the fun bit. Tip in your Reese’s Pieces, the chocolate chips (if you’re feeling it), and a little pinch of salt. This is where I always eat a couple candies, pretending it’s for "quality control." Mix until everything’s a rainbow-speckled, delicious mess.
  5. 5
    Scoop the mixture into your prepared pan and press it down firmly. You can get fancy and use a flat measuring cup, but, honestly, I use my (clean-ish) hands and call it rustic. If it looks lumpy or uneven, don’t sweat it—no one’s handing out points here.
  6. 6
    Stick the pan in your fridge and chill for at least an hour. If you’re like me and try to cut them early thinking you’re clever, learn from my "fun" mistake: you’ll end up with crumbly chaos. Waiting is your friend this time!
  7. 7
    Once things are nicely chilled, use the parchment to lift it all out and slice into bars, squares, trapezoids—whatever odd shapes happen. (I mean, I rarely get them evenly cut and nobody cares.) They keep in the fridge, but in my house? Gone by the next morning.
CLICK FOR NUTRITION INFO

Approximate Information for One Serving

Serving Size: 1 serving
Calories: 240 caloriescal
Protein: 10gg
Fat: 9gg
Saturated Fat: 0g
Trans Fat: 0g
Cholesterol: 0mg
Sodium: 0mg
Potassium: 0mg
Total Carbs: 28gg
Fiber: 0g
Sugar: 0g
Net Carbs: 0g
Vitamin A: 0
Vitamin C: 0mg
Calcium: 0mg
Iron: 0mg

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.

Did you make this recipe?

Please consider Pinning it!