Take your traditional hot fudge sundae up a notch with this easy, decadent Irish Cream Hot Fudge Sauce recipe!

Irish Cream Hot Fudge Sauce Recipe: white bowls filled with vanilla ice cream, irish cream hot fudge sauce, whipped cream and a cherry. Anyone else love to beat the summer heat with a hot fudge sundae?

We put a flavorful spin on a classic warm weather treat with this easy Irish Cream Hot Fudge Sauce recipe. Adding the rich flavor of Kerrygold Irish Cream Liqueur gives this hot fudge sauce an indulgent twist that you’ll be craving all summer long!

Making homemade hot fudge sauce couldn’t be easier. I love that this recipe uses real chocolate, cocoa powder AND Irish Cream Liqueur for a triple punch of chocolate flavor. I’m a dark chocolate lover, so bittersweet chocolate is the only way I roll with this recipe, but feel free to swap in semi-sweet chocolate if you’re craving a sweeter sauce. The hardest part of making this hot fudge sauce recipe is waiting for it to be cool enough to eat!

What is the difference between hot fudge sauce and chocolate syrup?

Let’s start with the obvious: hot fudge is thicker than chocolate syrup. The ingredients in hot fudge are often more decadent resulting in a richer, more flavorful sauce. You have to warm up fudge sauce to get it to pour nicely while chocolate syrup pours easily whether warm or cold.

How else can I use Irish Cream Hot Fudge Sauce?

Besides the deliciously obvious choice (ice cream sundaes), I wouldn’t hesitate to pour this decadent sauce over cheesecake, bread pudding or even drizzle it over this vanilla bean panna cotta. It makes a pretty mean milkshake, too.

Irish Cream Hot Fudge Sauce Recipe: Sauce pan filled with irish cream hot fudge sauce. Surrounded by fudge sauce ingredients, including cocoa powder, chocolate chips and a bottle of Kerrygold Irish Cream Liqueur. How long does homemade hot fudge sauce keep?

Well, that depends on if there are any chocolate lovers in your house! I’ve had no problem keeping a batch of this Irish Cream Hot Fudge Sauce in the fridge for up to 4 weeks, so it’s a great make ahead option to have on hand for a DIY sundae bar at your next backyard BBQ.

Up your ice cream sundae game this summer with this homemade Irish Cream Hot Fudge Sauce recipe! Want to see just how easy it is to make this decadent treat? Check out our how-to video below!

Equipment I used to make this homemade hot fudge sauce recipe:

  • Love these magnetic measuring cups because I never lose the one I need in my disorganized kitchen drawer!
  • A comfortable but sturdy balloon whisk makes quick work of creating a smooth sauce.
  • These jam jars make giving this Irish Cream Hot Fudge Sauce a perfect hostess or holiday gift!

You can never have too many ways to use hot fudge sauce!

S’mores Ice Cream Cake – Garnish with Lemon®

Hot Fudge Filled Chocolate Lava Cookies – TidyMom

Irish Cream Cheesecake Recipe – Garnish with Lemon®

Frozen Peanut Butter Pie – The Food Charlatan

Chocolate Marbled Banana Bread – Garnish with Lemon® (Yes, I would totally add a drizzle of hot fudge to my banana bread!)

Disclosure: This post was sponsored by Kerrygold. We only share products with you that we personally use and love. Thanks for supporting the brands that make Garnish with Lemon possible.

white bowl filled with vanilla ice cream and irish cream hot fudge sauce recipe. Garnished with whipped cream and a cherry.

Yield: 2 cups

Irish Cream Hot Fudge Sauce Recipe

Irish Cream Hot Fudge Sauce Recipe
Prep Time 5 minutes
Cook Time 8 minutes
Total Time 13 minutes


  • 2/3 cup heavy whipping cream
  • 1/2 cup light corn syrup
  • 1/4 cup packed dark brown sugar
  • 1/4 cup cocoa powder
  • 1/2 teaspoon pure vanilla extract
  • pinch of salt
  • 1 cup bittersweet chocolate chips
  • 1/4 cup Kerrygold Irish Cream Liqueur


Combine cream through salt in a medium saucepan. Whisk over medium heat until smooth. Reduce heat and simmer for 5 minutes, stirring occasionally.

Turn off heat, add chocolate chips and vanilla and stir until smooth. Whisk in Irish Cream Liqueur.


This sauce will thicken as it cools so resist the urge to eat it straight out of the pan. Refrigerate any unused sauce and reheat when needed.

Nutrition Information:

Amount Per Serving: Calories: 1492 Total Fat: 92g Saturated Fat: 54g Cholesterol: 240mg Sodium: 274mg Fiber: 9g Sugar: 158g Protein: 11g