Peanut Butter Cup Frappé

Contains peanuts. This recipe uses real powdered peanut butter — skip it for anyone with a peanut allergy, and see the swap note below for a peanut-free version. This is the blended version of our Peanut Butter Cup Mocha — same real Mocha Sauce and powdered peanut butter, blended with milk and ice instead of steamed and poured.

Make the Sauce First (Just Once)

This recipe assumes you already have a jar of Mocha Sauce in the fridge.

Building the Frappé

1. Pull a double shot of espresso.
2. Add the espresso, 2 tbsp Mocha Sauce, 1 tbsp powdered peanut butter, 4oz cold milk, and 1.5 cups of ice to a blender.
3. Blend on high for 30-45 seconds until smooth — no ice chunks or powder streaks left.
4. Pour into a 16oz glass and serve immediately with a straw.

Café-style blended peanut butter cup drink (grande)~$7.15

Home peanut butter cup frappé (espresso, milk, ice, sauce, PB powder)~$0.76

Savings per drink$6.39

The sauce batch itself is a one-time ~$1.30 and makes about 12 drinks. Assumptions: grande-size blended drink, national-average pricing for a specialty flavor-combo blended drink, dairy milk, $16/lb specialty beans or equivalent grocery beans, powdered peanut butter at ~$0.13/tbsp. At 5 of these a week over the site’s standard 48-week year, that’s roughly $1,534/year back in your pocket versus the café version.

Swaps & Notes

• Nut/peanut allergy? Skip the peanut butter powder entirely and this becomes our regular Mocha Frappé — the sauce carries the drink fine on its own.
• Gritty texture? Blend a little longer — protein-adjacent powders like PB2 need a thorough blend to fully break down, more than a plain syrup does.
• Want it poured instead of blended? See our Peanut Butter Cup Mocha — same ingredients, hot and poured over steamed milk instead.

Recipe Card Summary

Peanut Butter Cup Frappé

• 2oz espresso + 4oz milk + 2 tbsp Mocha Sauce (made ahead) + 1 tbsp powdered peanut butter + 1.5 cups ice, blended
• Prep time: 5 minutes (after the sauce is made) · Total: 5 minutes
• Cost: ~$0.76/drink vs. ~$7.15 café equivalent
• Contains peanuts

FAQ

Does this drink actually contain peanuts?

Yes — the powdered peanut butter is a real peanut product. Treat this exactly as you would any peanut-containing food for allergy purposes; skip it (see the swap note above) if peanuts are a concern for anyone drinking it.

Can I use real peanut butter instead of powdered?

Yes, though it blends in less smoothly cold than the powdered version — expect a thicker texture and roughly 75 more calories per drink.

Is this the same as your Protein Mocha Frappé?

No — the Protein Mocha Frappé adds a whey protein scoop and has no peanut butter in it at all. This recipe is peanut-butter-and-chocolate flavored with no added protein powder; they’re two different drinks that happen to share the same Mocha Sauce base.