Streusel here is a crisp, structured base for entremet cakes and crunchy inserts — not the loose pie-style crumble. I’ve previously used a hazelnut version in my hazelnut and strawberry mousse cake. This version uses a different technique: everything goes straight into the food processor instead of the creaming method, which keeps the dough from being overworked and removes the need for any resting time. This results in a perfect, clean, crisp entremet base.
As a second recipe, use the streusel as a crunch element by combining it with milk chocolate and peanut butter. This creates a stable crunchy foundation that you can spread as the bottom layer of your entremet, or shape into a thin crunchy insert using a silicone mould or cake ring.
Video Tutorial: Making Streusel and Entremet Crunch Base
Ready to see the process in action? Watch the video below to learn how to make a streusel and transform it into a crisp, professional entremet crunch base. Step by step, you’ll see the technique for achieving the perfect texture, shaping, and layering, so you can create flawless mousse cakes and entremets every time.
Streusel & Entremet Crunch Base
Ingredients
Streusel Base
- 50 g salted butter cold
- 50 g caster sugar
- 60 g almond meal
- 50 g plain flour
Streusel Crunch Mix
- 110 g baked streusel cooled, blitzed into fine crumbs
- 90 g milk chocolate
- 100 g peanut butter
- 20 g grapeseed oil or any neutral oil
- 20 g crushed toasted peanuts
- Pinch of sea salt
Instructions
Streusel Base
- Place the cold butter, sugar, almond meal, and flour into a food processor.
- Pulse until the mixture first looks sandy, then continue until it forms a cohesive dough.
- Bring the dough together briefly by hand.
- Roll to 2–3 mm thickness.
- Chill until firm, then cut to the shapes you need.
- Bake at 160°C (320°F) for ~10-15 minutes, or until lightly golden.
- Cool completely.
Streusel Crunch Mix
- Melt the milk chocolate to approx. 45–50°C (113–122°F).
- Stir in the peanut butter and the oil.
- Add the blitzed streusel crumbs, crushed toasted peanuts and salt, mixing until fully combined.
- Use immediately before it firms.
Video
Notes
- Works as a crunchy base layer for a mousse cake (entremet) or tart.
- Press directly onto a frozen mousse to form the bottom layer.
- For inserts: spread thin, freeze, and cut to size.
Choosing the Right Sugar for Streusel Recipe and Entremet Crunch Base
I’ve tested this recipe using both super fine (caster) sugar and granulated sugar. Baking results show that caster sugar produces a slightly more even texture, as the fine particles melt during baking and form a uniform structure. Granulated sugar gives a very similar outcome, though the texture is a bit rougher — which is perfectly acceptable. Overall, the choice of sugar is not critical. If you’re planning to use the streusel as part of a crunch mix, granulated sugar is sufficient, and there’s no need to use more expensive caster sugar.
Choosing the Right Butter for Streusel and Entremet Crunch Base
In recipes with at least 25% butter, I prefer to use cultured butter, which is made by fermenting cream before churning. This process adds a subtle tang and deeper flavour compared to regular butter. For this recipe, I recommend salted butter, as the salt is already evenly distributed, giving a balanced sweetness and consistent flavour throughout the streusel. You can also enhance the taste of your entremet crunch base by adding a pinch of salt, or even using salt flakes in the crunch mix. The flakes slowly dissolve while chewing, providing a pleasant accent and highlighting the sweetness of the layers.
Choosing Chocolate for the Crunch Mix
For the crunch mix, choose a milk chocolate that you enjoy, but make sure it’s a real chocolate made with cocoa butter, not vegetable fats like palm oil. Using high-quality chocolate makes a noticeable difference in flavour, texture, and how the crunch sets. This mix isn’t meant to be overly sweet — the focus is on creating depth of taste and balance, so you can fully appreciate the chocolate alongside the nutty and buttery notes of the streusel.
If you want to experiment, caramelised white chocolate works as a direct replacement for milk chocolate. It adds subtle caramel notes and a golden hue, which can enhance both the flavour and visual appeal of your crunch base. Remember to melt chocolate gently to avoid seizing, and mix it thoroughly with the streusel crumbs for a consistent, evenly coated crunch.
Mousse Cake Crunch Base Alternatives
Here are some alternatives that you can use as an entremet base:
- Sablé Breton Base for Mousse Cake – Buttery and crisp, perfect as a firm, structured crunch layer.
- Hazelnut Shortcrust Pastry – Nutty and rich, creates a crisp base for mousse cakes.
- Chocolate Shortcrust Pastry Recipe – Decadent chocolate layer, ideal as a crunchy base.
- Chocolate Cocoa Pops Crunch – Crispy and playful, works as a thin insert or bottom layer.
Want more behind-the-scenes action, step-by-step tutorials, and a sneak peek at upcoming recipes? Connect with me on Instagram @andbonbons and my YouTube channel for all the pastry tips and chocolate inspiration you need. Got a question? Leave a comment there – I’ll personally respond!
