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Coffee pastry creme-mousseline

Basic Creme Mousseline

Ever wondered how to make those fancy dessert fillings at home? Our Crème Mousseline recipe is your easy step-by-step guide to creating a rich, buttery cream perfect for any treat.
Prep Time: 35 minutes
Waiting Time: 2 hours
Total Time: 2 hours 35 minutes
Course: Dessert, Filling
Cuisine: French
Keyword: Cream Patisserie, Creme Mousseline, Custard, Filling, Pastry Cream
Servings: 3.5 cups

Ingredients

  • 2 cups milk ~480g
  • 4 egg yolks medium or large (about 60-70g)
  • 4 tablespoons cornstarch ~40g
  • 7 tablespoons sugar ~87g
  • 2 teaspoons vanilla extract
  • 2 tbsp unsalted butter ~28g, for pastry cream
  • 8 oz unsalted butter ~226g, for whipping

Instructions

Make Pastry Cream

  • Boil Milk: In a pot, mix milk with vanilla extract and half the sugar, and heat until almost boiling.
    2 cups milk, 2 teaspoons vanilla extract, 7 tablespoons sugar
  • Prep Yolks: Whisk yolks in a bowl, then mix in cornstarch and the remaining sugar.
    4 egg yolks, 4 tablespoons cornstarch
  • Temper Eggs: Gradually add a few tablespoons of hot milk to the yolk mixture, whisking constantly to avoid curdling. Repeat until all milk is incorporated.
  • Thicken Cream: Return mixture to the pot and cook on low/medium heat, stirring constantly, until it thickens and bubbles (2-4 minutes).
  • Off Heat Whisking: Once thick, remove from heat and whisk for another minute.
  • Add Butter: Stir the cold butter into the mixture until melted and integrated.
    2 tbsp unsalted butter
  • Taste and Adjust: Taste the cream and add more sugar or vanilla if needed.
  • Chill: Cover with plastic wrap touching the cream's surface to avoid crust formation. Cool until it's at room temperature, either on the counter or use the fridge or a cold water bath to speed things up.

Prep Butter

  • Soften Butter: Remove butter from the fridge, cut into chunks, and let it reach room temperature to ensure it's soft but not melted.
    8 oz unsalted butter

Combine

  • Whip Butter: Whip the softened butter in a mixing bowl on medium speed for 20-30 seconds until airy.
  • Mix with Pastry Cream: Gradually add the pastry cream to the whipped butter, mixing continuously until fully incorporated and smooth.
  • Adjust Flavor: Taste and adjust by adding more powdered sugar or vanilla if needed.
  • Refrigerate: If the mousseline cream needs to hold shape for piping, refrigerate it for an hour to firm up; otherwise, you can use it immediately.
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