It doesn't get more festive and fun than Halloween chocolate mousse with tombstone sugar cookies! They're the perfect spooky treat for parties and kids of all ages. They're also easy to make ahead and store, and they're ready in just over an hour!

Use the chocolate mousse in this recipe, or try it with our take on Julia Child's chocolate mousse. For a dairy-free version, try our vegan pots de creme.

a spoon in a jar of Halloween Chocolate Mousse

These little chocolate mousse graveyards are adorable and delicious, too! A simple two-ingredient chocolate mousse is served in individual jars, then topped with tombstone cut-out cookies and an oreo crumble.

They're a super fun Halloween treat to make with kids and perfect for parties. Prepare them ahead of time and store them in the fridge with the lids on. The jars easy to transport, too. Top with oreo crumbles and a tombstone cookie when you're ready to serve and “dig” in!

What you'll need to make Halloween chocolate mousse

You only need two ingredients to make this simple chocolate mousse recipe:

  • Chocolate chips
  • Heavy cream

Here are the ingredients for the tombstone sugar cookies:

  • Butter
  • Sugar
  • Egg
  • Vanilla
  • Flour
  • Baking powder
  • Poppy seeds
  • Salt
  • Decorating gel

To assemble this Halloween chocolate dessert, you'll also need Oreo cookie crumbs and six 125ml mason jars.

tombstone cookies with RIP written on top.

How to make Halloween chocolate mousse

This is such an easy and fun Halloween dessert recipe to make for kids of all ages!

For the chocolate mousse

We use a really simple chocolate mousse recipe that comes together quickly. Just melt the chocolate chips in the microwave with half the cream. Then beat the rest of the cream with an electric mixer until stiff peaks form to make whipped cream. Then, gently fold the two together and divide it into small jars.

For the tombstone sugar cookies

Feel free to use your favorite sugar cookie recipe, or use the one we include in the recipe card below. Once you've made the cookie dough, roll it out and use a knife to cut it into tombstone shapes before you bake it. Writing RIP on top after they come out of the oven makes them look like they belong in a graveyard!

Tip: There will be more cookie dough than you need for the mousse so you can use it to make more fun and delicious Halloween cut-out cookies!

Full recipe instructions are in the recipe card below.


How long can I store the mousse in the fridge?

When stored in a sealed jar, the mousse will keep in the fridge for up to 3 days.

Where do I buy oreo cookie crumbs?

You can find oreo cookie crumbs in the baking section of most grocery stores. You can also use regular oreo cookies and crush them into small pieces to make a crumble.

How do I prepare these ahead of time?

You can make the mousse and the cookies up to 3 days ahead of time, but store them separately. Wait to assemble them until right before serving so the cookies and oreo crumbles keep their crunch.

a close up of a tombstone cookie on top of Halloween Chocolate Mousse

More Halloween dessert recipes

a spoon in a jar of Halloween Chocolate Mousse

Halloween Chocolate Mousse Recipe

It doesn't get more festive and fun than halloween chocolate mousse with tombstone sugar cookies! They're the perfect spooky treat for parties and kids of all ages. They're also easy to make ahead and store, and they're ready in just over an hour!

If you love this recipe as much as we do, let us know with a 5-star rating!

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Chocolate Mousse

  • 6 ounces chocolate chips
  • 1 cup heavy cream

Tombstone Cookies

  • 6 tablespoons butter, at room temperature
  • ½ cup granulated sugar
  • 1 large egg
  • ½ teaspoon vanilla extract
  • 1 ¼ cups all-purpose flour
  • 1 ½ teaspoons baking powder
  • 1 teaspoon poppy seeds
  • ½ teaspoon salt
  • Black decorating gel


  • ¼ cup Oreo cookie crumbs


Chocolate Mousse

  • Heat the chocolate and ½ cup of the cream in a large-sized bowl in your microwave, stirring after each 20-second interval, until the chocolate is melted. Set aside until it is cool to the touch, about 10 minutes.
    6 ounces chocolate chips
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  • Beat the remaining ½ cup of cream using an electric beater until stiff peaks form.
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  • Gently fold the whipped cream into the cooled chocolate. Divide the mousse between 6 small jars.
    image for recipe instruction

Tombstone Cookies

  • Preheat your oven to 350 degrees. In a medium-sized bowl cream together the butter, sugar, egg, and vanilla using an electric mixer.
    6 tablespoons butter, ½ cup granulated sugar, 1 large egg, ½ teaspoon vanilla extract
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  • In another medium-sized bowl, whisk the flour, baking powder, poppy seeds, and salt.
    1 ¼ cups all-purpose flour, 1 ½ teaspoons baking powder, 1 teaspoon poppy seeds, ½ teaspoon salt
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  • Slowly add the dry ingredients to the wet ingredients and mix until combined.
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  • Roll out half the dough ½ inch thick on a lightly floured surface. Cut out tombstone shapes, making the tombstones slightly pointed at the bottom end to help them hold in place the mousse. You will have more dough than you need for the tombstones so make Halloween cut-out cookies from the remaining dough.
    image for recipe instruction
  • Bake on cookie sheets for 6-8 minutes, or until lightly browned on the bottom. Remove from the oven and cool completely. Once the cookies are completely cool, use a black gel decorating pen to draw RIP on the top of each tombstone cookie.
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  • Scoop about 1 teaspoon of cookie crumbs on top of each chocolate mousse and place a tombstone cookie in each.
    ¼ cup Oreo cookie crumbs
    image for recipe instruction


The nutritional information is calculated for the chocolate mousse only and not the cookies. 
Serving: 1 chocolate mousse jar, Calories: 205kcal, Carbohydrates: 10g, Protein: 1g, Fat: 18g, Saturated Fat: 12g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Cholesterol: 49mg, Sodium: 16mg, Potassium: 38mg, Sugar: 9g, Vitamin A: 583IU, Vitamin C: 0.2mg, Calcium: 26mg, Iron: 0.04mg
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