Peanut Butter Coffee Blondies — Fudgy Espresso Bars

Real coffee grounds, brown sugar, sweetened condensed milk, and a blizzard of peanut butter chips — these blondies taste like the best parts of a coffee shop pastry case and a Tuesday-night baking mood.

Peanut Butter Coffee Blondies — Fudgy Espresso Bars

Sally's Kitchen 

Peanut Butter Coffee Blondies

Real ground coffee stirred right into the butter. Sweetened condensed milk for that rich, almost egg-coffee depth. A blizzard of peanut butter chips on top and folded through. These are the blondie you make when you want dessert to also taste a little bit like a coffee shop pastry case.

Yield

9 bars

Time

~40 min

Vibe

Fudgy

The Coffee That Makes This Work

Peanut Butter Blondie Coffee is peanut butter and brown sugar built right into the roast, so when you grind it fine and stir it into the butter, the blondies taste like they've got twice the peanut butter working in them — even before the chips show up. It's new, it's genuinely a little unhinged in the best way, and it was basically made for this recipe. You could use another medium roast — but this is the one the recipe was built around.

Shop Peanut Butter Blondie Coffee →

Available in whole bean, ground, pods, and decaf. Fresh roasted to order, every time.

Why You'll Love It

  • Fudgy in the middle, just crisp at the edges — the correct blondie texture, no notes
  • Real coffee flavor throughout, not a faint background hum
  • Sweetened condensed milk does double duty — sweetener and moisture in one can
  • One pan, no mixer, done in under an hour including bake time

The Java Momma Twist

Most coffee blondie recipes call for instant espresso powder, which dissolves clean and disappears into the batter. We went a different way: actual Peanut Butter Blondie Coffee, ground fine — espresso grind — and bloomed directly in the melted butter before anything else goes in. It doesn't fully dissolve. You'll see it, you'll taste it, and the payoff is a blondie with real coffee flecking running through the crumb instead of a flavor you have to take on faith. If peanut butter blondie feels like too much peanut butter for one dessert, Nuts About You works beautifully here too — same technique, nuttier and a little more toasted-almond in the background instead of double peanut butter.

Ingredients

  • 6 Tbsp salted butter
  • 1 Tbsp Peanut Butter Blondie Coffee (or Nuts About You), ground fine — espresso grind
  • ½ cup plus 1 Tbsp packed light brown sugar
  • ½ cup sweetened condensed milk
  • 1 large egg + 1 large egg yolk, whisked together
  • ⅛ tsp baking powder
  • 1 cup all-purpose flour
  • ½ cup peanut butter chips, divided

Directions

  1. Prep the pan. Preheat oven to 325°F. Line an 8x8-inch metal baking pan with parchment paper.
  2. Bloom the coffee. Melt the butter over low heat on the stovetop. Once melted, remove from heat and stir in the ground coffee. Add the brown sugar and sweetened condensed milk, stirring to combine after each addition.
  3. Add the eggs. Whisk the egg and egg yolk together, then add to the butter mixture, whisking vigorously until smooth and glossy. Set aside.
  4. Fold in the dry. Sift the flour and baking powder together in a medium bowl. Add to the butter mixture and fold gently until just combined. Fold in half the peanut butter chips.
  5. Bake. Spread the batter into the prepared pan. Scatter the remaining peanut butter chips on top. Bake 20–25 minutes, until the top is evenly golden brown and the edges are browned. Let cool completely before cutting into squares.

Swaps & Permission Slips

  • No fine grinder handy? A pre-ground espresso roast works — just make sure it's genuinely fine, not a drip grind, or it won't bloom the same way in the butter.
  • Want it nuttier instead of double peanut butter? Swap in Nuts About You for the coffee — same method, more toasted-almond warmth.
  • Out of peanut butter chips? White chocolate chips are the closest swap for texture and sweetness — you'll lose the peanut butter doubling-down effect, but it's still a very good blondie.
  • Slightly underbaked middle on purpose? Yes. Pull at 20 minutes for fudgier, 25 for a firmer set. Both are correct.

Made this one? Peanut Butter Blondie Coffee is available whole bean, ground, in pods, and decaf — so however you make your coffee, it works. Fresh roasted to order, every time.

More recipes like this one are at The Menu.

These don't last long enough to worry about storage, but if yours do: airtight container, counter, three days. Or the freezer, if you're the type who hides dessert from your own family. No judgment.

If this one hit the spot, it's got siblings. Dirty Chai Coffee Blondies go bold and spiced — coffee twice over, warm chai spice, chocolate, and toasted pecans. Mocha Glazed Chocolate Chip Blondies go soft and buttery, finished with a coffee-spiked glaze. Three blondies, three different coffee moods — pick whichever one matches yours today.

FAQ

Can I use instant espresso powder instead of ground coffee?
You can, but you'll lose the coffee flecking through the crumb that makes these a little different from every other coffee blondie recipe out there. Instant espresso powder dissolves completely; fine-ground coffee blooms in the butter and stays visible and textural. Both taste good — only one looks and bites the way these do.

Is this the same as Vietnamese coffee blondies?
Same technique family — sweetened condensed milk and an extra egg yolk for richness, the way Vietnamese egg coffee gets its body. Ours leans peanut butter instead of white chocolate, and uses real ground coffee instead of instant espresso powder for a more textural bite.

Why sweetened condensed milk instead of regular sugar?
It brings sweetness and moisture in the same can, which is what keeps these fudgy in the middle instead of cakey. It's also the reason this batter comes together glossy rather than grainy.

Can I double this recipe for a 9x13 pan?
Yes — double all ingredients and expect a slightly longer bake, closer to 28–32 minutes. Watch the edges rather than the clock.

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Peanut Butter Coffee Blondies — Fudgy Espresso Bars

Real coffee grounds, brown sugar, sweetened condensed milk, and a blizzard of peanut butter chips — these blondies taste like the best parts of a coffee shop pastry case and a Tuesday-night baking mood.

Author
Sally Valenti
Prep Time
15 minutes
Cook Time
25 minutes
Servings
9
Category

Dessert Bars

Cuisine

American

Ingredients

  • 6 Tbsp salted butter
  • 1 Tbsp Peanut Butter Blondie Coffee (or Nuts About You), ground fine (espresso grind)
  • ½ cup plus 1 Tbsp packed light brown sugar
  • ½ cup sweetened condensed milk
  • 1 large egg + 1 large egg yolk, whisked
  • ⅛ tsp baking powder
  • 1 cup all-purpose flour
  • ½ cup peanut butter chips, divided

Directions

  1. Preheat oven to 325°F. Line an 8x8-inch metal baking pan with parchment paper.
  2. Melt butter over low heat on the stovetop. Remove from heat and stir in the ground coffee. Add brown sugar and sweetened condensed milk, stirring to combine after each addition.
  3. Whisk egg and egg yolk together, then add to the butter mixture, whisking vigorously until smooth and glossy. Set aside.
  4. Sift flour and baking powder together in a medium bowl. Fold into the butter mixture until just combined. Fold in half the peanut butter chips.
  5. Spread batter into the prepared pan. Scatter remaining peanut butter chips on top. Bake 20–25 minutes until the top is evenly golden and edges are browned. Cool completely before cutting into squares.
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