Thin Mint Latte with Homemade Chocolate Mint Syrup (Hot or Iced)

Thin Mints are my favorite cookie ever. And I mean ever.

So when my boyfriend ordered Girl Scout cookies and did not order my favorites, I was devastated. Truly. But then two days later he proposed to me in Central Park… so my fiancé is forgiven. Obviously. And when we got back to Ohio, my little brother surprised me with my favorite cookies because he knew how dramatic I was about not getting them. It honestly felt like a sign.

So naturally, I turned them into a latte.

This Thin Mint inspired latte tastes like that perfect combination of rich chocolate, cool peppermint, and that slightly buttery cookie finish. It is nostalgic, cozy, and honestly tastes like you melted a cookie straight into your coffee.

Ingredient Breakdown

• Granulated Sugar – Sugar sweetens and balances the cocoa powder. Since cocoa is naturally bitter, sugar ensures the syrup tastes smooth and dessert like. It also gives the syrup that glossy, coffee shop consistency.
• Unsweetened Cocoa Powder – Cocoa powder provides deep chocolate flavor. It mimics the rich coating on Thin Mints and gives the syrup a bold mocha base. Use high quality cocoa for the best flavor.
• Water – Water dissolves the sugar and cocoa and creates a pourable syrup texture. The one cup ratio keeps it thick enough to feel indulgent but thin enough to mix easily into hot or iced drinks.
• Peppermint Extract – Peppermint extract gives that cool mint flavor that defines a Thin Mint. Add it after removing the syrup from heat to keep the flavor fresh and vibrant. A little goes a long way.
• Butter Extract – This is the secret ingredient. Butter extract gives that subtle cookie note that makes this taste like an actual Thin Mint instead of just a peppermint mocha. It rounds everything out and adds depth.
• Milk – Milk adds creaminess and balances the chocolate and mint. Whole milk makes it rich, but oat milk works beautifully for a dairy free option.
• Espresso – Espresso anchors the sweetness and enhances the chocolate. It keeps the drink from tasting like hot cocoa and makes it a true latte.

Substitutions & Modifications

• Use dark cocoa powder for deeper chocolate flavor

• Add ½ ounce white chocolate syrup for sweetness

• Make it decaf for nighttime

• Use almond or oat milk for dairy free

• Add a pinch of salt to enhance chocolate flavor

Why You’ll Love This Recipe

• Tastes like a melted Thin Mint

• Perfect for Girl Scout cookie season

• Works hot or iced

• Way cheaper than buying specialty drinks

• So easy to make at home

It is chocolatey, minty, slightly buttery, and completely nostalgic.

Equipment Needed

• Medium saucepan

• Espresso machine or coffee maker

• Milk frother (optional)

• Measuring cups and spoons

Thin Mint Latte with Homemade Chocolate Mint Syrup (Hot or Iced)

A chocolate mint latte inspired by Thin Mint cookies, made with a homemade chocolate mint syrup. Perfect hot or iced.

Pin Rate

Prep Time: 5 minutes minutes

Cook Time: 15 minutes minutes

Total Time: 20 minutes minutes

Servings: 1 latte

Calories: 179kcal

Ingredients

Chocolate Mint Syrup

• ¾ cup granulated sugar
• ¼ cup unsweetened cocoa powder
• 1 cup water
• 1 teaspoon peppermint extract
• ½ teaspoon butter extract

Latte (1 serving)

• 1 ounce chocolate mint syrup
• 6 ounces milk
• 2 shots espresso
• Optional whipped cream

Instructions

Make the Syrup

• Add sugar, cocoa powder, and water to saucepan.
• Whisk and bring to gentle simmer.
• Simmer 5 to 7 minutes.
• Remove from heat.
• Stir in peppermint and butter extracts.
• Cool completely and store in refrigerator.

Hot Latte

• Brew espresso.
• Stir in syrup.
• Steam milk and pour over.
• Top as desired.

Iced Latte

• Fill glass with ice.
• Add syrup.
• Pour milk over.
• Add espresso.
• Stir and serve.

Notes

Store syrup refrigerated up to 3 weeks. Shake before using.

Nutrition

Calories: 179kcal | Carbohydrates: 27g | Protein: 6g | Fat: 5g | Saturated Fat: 3g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Cholesterol: 20mg | Sodium: 67mg | Potassium: 319mg | Sugar: 25g | Vitamin A: 276IU | Calcium: 240mg | Iron: 0.03mg

Storage Instructions

Store chocolate mint syrup in an airtight jar in the refrigerator for up to 2 weeks. Shake before using as cocoa may settle slightly. Do not store at room temperature.

Tips & Tricks

• Whisk constantly when heating to prevent cocoa clumps.

• Do not boil aggressively. A gentle simmer is perfect.

• Add extracts after removing from heat to preserve flavor.

• Start with slightly less peppermint if sensitive to mint.

Frequently Asked Questions

Does this taste exactly like Thin Mints?
It tastes like the chocolate mint flavor profile with a subtle cookie finish from the butter extract.

Can I skip butter extract?
Yes, but it adds that signature cookie note.

Can I use chocolate syrup instead of cocoa powder?
You can, but cocoa powder gives a more authentic chocolate flavor.

Is this overly minty?
No. One teaspoon is balanced, but adjust to your preference.

Do you LOVE Making Coffee at Home?! Check Out More of my Favs:

Homemade Honey Vanilla Latte

Lucky Charms Latte with Homemade Marshmallow Syrup (Hot or Iced)

Homemade Pistachio Latte with Real Pistachio Syrup (Hot or Iced)

This Thin Mint inspired latte feels nostalgic, cozy, and just a little dramatic in the best way. It is rich chocolate, cool mint, and subtle cookie vibes all in one cup. Honestly, it was meant to happen.

If you love Thin Mints as much as I do, you need to try this. Save this recipe for Girl Scout season and tag me when you make it. Let’s turn our favorite cookies into home café moments.