Streusel Topping Recipe (Easy 2:1:1 Ratio)

Quick Summary: Streusel topping is a crumble made from just three ingredients: flour, sugar, and butter. The easiest streusel ratio to remember is 2:1:1, meaning 2 parts flour to 1 part sugar and 1 part butter by weight, which gives rich, crunchy crumbs. Rub cold butter into the dry ingredients until you get coarse, sandy crumbs, then bake at 300°F (150°C) for 20 to 25 minutes, or sprinkle over muffins and cakes before baking.

Once you understand this simple 2:1:1 ratio, you can build endless variations. To make it even easier, I put together a free Streusel Recipe Template (you can download it further down the page) that helps you create hundreds of your own crumble recipes.

What is streusel?

Streusel is a crumble topping made from flour, sugar, and butter, rubbed together into loose crumbs that are scattered over baked goods. The name comes from the German word streuen, which means "to sprinkle."

It is very close to a crumble topping; the main difference is that streusel is the German-style version and often skips oats, while a British crumble frequently includes them.

As for the origin, streusel was first popularized in Germany. According to food historians, it was adopted by Alsace-Lorraine at the time of Reischland.

It usually exists in that definition: sprinkled or scattered on top of baked goods (quick bread, cakes, muffins, tarts, etc.) to add crunchiness, richness, and texture.

It can also be baked on its own on a baking sheet and served with ice cream and yogurt. The savory version of streusel is served with salads, soups, or even pasta.

Interestingly, besides streusel as a crumble topping, a popular Alsatian dessert (streusel brioche) is topped with streusel dough.

Why you'll love this recipe

• Just three ingredients: it uses flour, sugar, and butter, all things you probably have on hand.
• Buttery and crunchy: it adds a rich, crisp topping to muffins, cakes, and quick bread.
• Quick and beginner-friendly: the crumb topping comes together in about 5 minutes and is hard to get wrong.
• Doubles as breakfast: baked on its own, it works sprinkled over yogurt or with milk like a cereal.

Ingredients

For ingredients and detailed instructions, refer to the recipe card below.

• Butter is essential because streusel is all about its quality and quantity. For the ideal texture and flavor, use high-quality butter with a high fat content, preferably European-style butter with 82% fat. You can use salted or semi-salted butter, or unsalted butter with a pinch of salt. For a dairy-free or vegan version, substitute vegan butter or margarine; firm vegan butter, such as Earth Balance, works well, while soft butter spreads may contain more water and can affect the texture of the streusel.

Pro tip: Ideally, use butter cold and cut into small cubes. Don't soften it at room temperature, and add it as the last ingredient.

• Cold butter creates larger, more stable crumbs.
• Room-temperature butter can also produce large crumbs, but the texture will be somewhat different.
• Melted butter works too, but it produces finer, more crumbly crumbs. When using melted butter, I recommend tossing the ingredients together with a fork rather than mixing them with your hands.

• Flour: The recipe calls for all-purpose flour, but you can adapt and modify the streusel in many ways (instructions and variations are below).

• Sugar: Use golden brown sugar or dark brown sugar to bring a caramel flavor to your streusel. Replace it with white caster sugar or granulated sugar if desired.

• Nuts (optional): Nuts count toward the flour portion of the ratio, not in addition to it. In this recipe, the flour part is split as 40 g flour plus 40 g nuts, which is why the 40 g flour, 40 g nuts, 40 g butter, and 40 g sugar still add up to a 2:1:1 streusel by weight. Use toasted chopped hazelnuts, slivered or flaked almonds, chopped unsalted pistachios, pine nuts, walnuts, or pecans, or replace them with almond or hazelnut flour.

• Ground cinnamon (optional): It spices up the crunch topping.

Equipment

To make streusel topping at home, gather these basic kitchen tools before you start:

• medium mixing bowl
• pastry blender or fork
• food processor or stand mixer with paddle attachment
• box grater or spider skimmer
• baking sheet
• parchment paper

How to make streusel topping

Step 1. Preheat oven to 300°F (150°C). Place dry ingredients such as all-purpose flour, sugar, and chopped nuts in a medium bowl. Optionally add spices and mix.

Step 2. Add the cold butter, cut into cubes, and work it in with your fingertips until you get coarse crumbs (photo 1). The texture will look like wet "sand."

Step 3. Try to "sand" the dough quickly, not heat the butter. Crumbling the dough with fingers makes the butter crumbs less uniform and more flavorful.

Step 4. Alternatively, you can mix the crumble dough in a food processor or a stand mixer fitted with the paddle attachment.

Step 5. Or you can work all the ingredients with a rubber spatula, a fork, or a pastry blender.

Step 6. Then use a special tool, a spaetzle maker, or a spider skimmer with large holes to grate the streusel dough. Drop the filaments on the baking sheet and spread them out.

Step 7. Or form a dough ball and chill it in the refrigerator for 1 to 2 hours. Then grate the dough using a grater with large holes. This version gives the dough a thicker consistency.

Step 8. Spread the crumbles on a baking sheet lined with parchment paper (photo 2).

Step 9. Bake for 20 to 25 minutes or until the desired color. Let cool.

Step 10. You can sprinkle the crumble topping on top of muffins, cake, tart, pie, etc., and bake as directed in the recipe, or serve it over vanilla ice cream (photo 4).

Recipe variations

A classic streusel topping is built from three simple ingredients: flour, butter, and sugar. What changes from recipe to recipe is the ratio between them, and that ratio decides whether your crumbs come out crunchy, rich, or light. All the ratios below are measured by weight, and if you add nuts, count them as part of the flour portion. Here are the most common ones:

• 2:1:1 (my go-to): 2 parts flour, 1 part butter, and 1 part sugar. It is easy to remember and gives rich, crunchy crumbs that hold their shape.
• 3:2:1 (shortcrust style): 3 parts flour, 2 parts butter, and 1 part sugar. This pastry ratio makes a slightly richer, more tender crumb.
• 1:1:1 (lighter crumble): equal parts flour, butter, and sugar for a softer, lighter topping.

Once you know the ratio, the fun begins. The streusel topping is easy to customize, and the variations are almost endless. Start by swapping one of the three base ingredients:

• Flour: You are free to replace all-purpose flour with whole wheat flour, gluten-free flour, chestnut flour, or whole grain corn flour.

• Sugar: You can swap brown sugar for muscovado sugar (light or dark) for a deeper caramel flavor. Or use white sugar: superfine baker's sugar, granulated sugar, or icing (powdered) sugar. Or omit the sugar and make a sugar-free streusel topping like for this sugar-free banana bread.

• Flour alternatives: add hazelnut meal or almond flour (as the fourth ingredient) in place of all-purpose flour. It will result in a different texture (more tender) of the streusel. A great example is this banana bread with streusel.

Pro tip: Make ground nuts yourself, then toast them at 335°F (170°C) for 10 minutes in the oven. I find it brings a more pronounced taste than purchased nut flour.

• Add-ins: To make the streusel toppings crispier, add shredded coconut, quick oats (oatmeal), muesli, wheat semolina, quinoa, or sesame seeds.

• Spices: flavor the basic butter-flour-sugar mix with ½ teaspoon ground cinnamon, a dash of ground nutmeg, ground ginger, cardamom, pumpkin pie spice, allspice, or vanilla seeds scraped from a pod.

• Citrus: add a tangy note with finely chopped or zested lemon, orange, or lime rind.

• Chocolate: replace ⅓ of the flour with unsweetened cocoa powder to make a chocolate streusel.

• Nuts and dried fruit: fold in chopped nuts and small pieces of dried fruit for extra crunch and flavor. The combinations really are endless.

• Crumb size: play with the crumb size. In Germany, bigger crumbs are prized, so use your fingers to rub the dough and press the smaller crumbs together for a coarser topping.

Expert tips

1. You can make the streusel recipe with softened butter at room temperature. In this case, mix the ingredients very quickly to prevent the dough from overheating with your fingers. Remember: the softer the butter, the finer the crumble will be.
2. If you want to make the recipe with melted butter, use a fork to toss the ingredients. 
3. Look for the sandy texture of the crumbs: under-mixing results in a dry streusel, and over-mixing ends up in a too-cohesive crumble.
4. Cover the bowl with plastic and keep the streusel in the refrigerator until ready to use. The chilled crumbles will keep their shape when baking.
5. Sprinkle your streusel with ice-cold water 3 to 5 minutes before the end of baking. This gives them a golden-brown color, makes them extra crispy, and refines the salt note.
6. Alternatively, dust the streusel with a little icing sugar about 10 minutes before the end of baking. It caramelizes the crumble for extra flavor and crunch.
7. This recipe makes enough streusel to top one bread loaf, 12 regular-sized muffins, or 48 mini muffins.

Storing & freezing

Store baked streusel crumb in an airtight container, bag, or jar for several days. You can keep the unbaked crumble tightly closed in the refrigerator for up to three days.

Can you freeze streusel? Yes, absolutely. Spread the leftover streusel (unbaked) on a baking sheet lined with parchment paper or a silicone mat and freeze it for at least one hour. Then transfer it to a Ziploc freezer bag, label it, and freeze it for up to 3 to 6 months.

Once ready to use, spread the frozen streusel on your cake and bake it according to the recipe. If you want to prepare the crumble for homemade muffins, cakes, or quick bread, bake it as in the basic recipe below.

How to use streusel topping

Homemade streusel is versatile, so there are plenty of ways to use it. Here are my favorites:

• Sprinkle streusel on fruit (strawberries, rhubarb, etc.), make fruit crisps or crumble, quick breads, fruit pies, coffee cakes, homemade muffins (blueberry muffins, for example), bundt cakes, or brioche as a topping, then bake.

• Like the Alsatians, bake the streusel in a single even layer on a baking sheet lined with parchment.

• Crumble it over your favorite ice cream, yogurt, or macerated fruit. Or serve it with whole milk as cereal for your breakfast.

Want a few more ideas? Try these:

• Make a tart or tartlet base (a "reconstituted shortbread") using a technique by Thierry Bamas.  

• Or use it as a crumble for glass desserts or original decorations for tarts, bread, and cakes.

Streusel recipe template

As promised, here is my free recipe template, "The Only Streusel Recipe You'll Ever Need." Download it below and keep it handy whenever you bake.

It sounds bold, but this really can be the only streusel recipe you need. The template gives you the base ratio and shows you how to build on it.

By mixing and matching ingredients, the options open right up. Swap just one of the three basics (flour, sugar, or butter) for a new addition, and you can create hundreds of your own streusel recipes.

Download free Streusel Recipe Template >>>

Recipe FAQ

What is the ratio for streusel topping?
The easiest streusel ratio is 2:1:1 by weight: 2 parts flour, 1 part sugar, and 1 part butter. This gives rich, crunchy crumbs that hold their shape. A pastry-style 3:2:1 (flour:butter:sugar) works too, and a 1:1:1 ratio makes a lighter, softer crumble.

What is the difference between streusel and crumble?
They are almost the same: both are crumbly toppings of flour, sugar, and butter. Streusel is the German-style version and usually leaves out oats, while a British crumble topping often includes oats and sometimes larger, chunkier crumbs.

Can you add oats to streusel?
Yes. Stir in a handful of quick oats along with the flour for a heartier, more crumble-like topping. Oats also add extra crunch and pair well with fruit bakes.

Why does the crumble dough get too sticky?
It usually means the dough was overworked. Rubbing or kneading for too long warms the butter and turns it into a soft, sticky mass. Toss the ingredients quickly, or pulse them in a food processor and finish briefly by hand with cold hands.

Why do crumbles lose their shape during baking?
This happens when there is too much butter for the amount of flour, so the streusel melts and spreads into a layer instead of staying as separate crumbs. Stick to the 2:1:1 ratio to keep the crumbs distinct.

How do you make streusel crispy?
Follow the right proportions, keep the butter cold, and do not overbake. Adding quick oats or chopped nuts increases crispness, and a sprinkle of ice-cold water near the end of baking helps the crumbs turn golden and crisp.

Why is your streusel too dry?
There are three common reasons: too little fat, an under-mixed dough, or over-baking. Add a touch more butter, mix until the crumbs hold together, and pull the streusel from the oven once it is golden.

Why do crumbs fall off the cake when slicing?
The crumbs did not stick to the batter. If the ratio is right, this is rare, but you can gently press the crumbles into the batter before baking, so they adhere.

How do you make a savory streusel?
For a savory crumble, mix equal parts flour and cold butter, then add grated Parmesan and your favorite spices. Keep the pieces small so they crisp up.

Love streusel-topped desserts? Try these next!

• Banana Bread Mini Muffins
• Sugar-Free Banana Bread
• Christmas Banana Bread
• Banana Bread Without Baking Soda

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The nutritional information has been calculated using an online recipe nutrition calculator such as Verywellfit.com and is intended for informational purposes only. These figures should be used as a general guideline and not be construed as a guarantee.