Chef Joost
Amsterdamse Koggetjes (Amsterdam Nougatine Cookies)
A thin Amsterdam cookie carrying a cog ship in its name: caramelized butter dough, almond nougatine, and a 1934 contest that turned municipal pride into something for coffee.
Culinary Explorer
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Roomboterkoek
Created by
Roomboterkoek is the Dutch coffee-table argument won by butter: flat, dense, golden-cracked, and simple enough that the ingredient list has nowhere to hide.
Pastries & Cookies
Dutch
Comfort Food
Make Ahead
Birthday
15 min
Active Time
25 min cook•1 hr 40 min total
Yield12 wedges
The name already tells you the law of the dish. Room means cream, boter is butter, and koek sits in that useful Dutch borderland between cake and cookie where half our best baking lives. Roomboterkoek is not a sponge, not a tart, not a polite little biscuit. It is a flat round of butter held together by just enough flour and sugar to make it sliceable.
In my grandmother's second notebook, boterkoek appears on the birthday pages, beside coffee quantities and the names of aunts who took sugar. That is where it belongs: not on a pastry-school cart, but on the table after someone has cut it into narrow wedges because every Dutch cook knows a large slice is bravado. But let me tell you a secret: the whole recipe is a test of honesty. Use margarine and you have made something flat and sweet. Use real roomboter, cream butter, and the cake becomes what it promised to be.
There is almost no technique here, for obvious reasons: the butter has already done most of the thinking. Still, hou het altijd simpel, always keep it simple, is not permission to be careless. Cream the butter and sugar until soft, press the dough evenly into the tin, brush it with egg, and score the top with a fork so the golden surface catches in little ridges. Then stop baking while the centre still feels tender. A dry boterkoek is a sad legal document. A proper one is smeuig, moist and dense, and it cuts like butter's own confession.
Boterkoek belongs to the Dutch coffee-table tradition documented in household cookbooks of the nineteenth and twentieth centuries, where small rich slices were served with koffie at birthdays, Sunday visits, and family gatherings. The word roomboter, cream butter, became especially meaningful after margarine entered Dutch kitchens through the large Brabant firms of Jurgens and Van den Bergh in the late nineteenth century; naming real butter was a way of drawing the line. The dish's plainness is the point: it records a Dutch baking habit in which richness comes from one good ingredient, not from decoration.
The technique, the tradition, and the story behind every dish.
Discover Culinary ExplorerIngredients
unsalted roomboter
Quantity
250g
softened, plus extra for the tin
fine caster sugar
Quantity
200g
fine sea salt
Quantity
1/4 teaspoon
vanilla extract or vanilla sugar
Quantity
1 teaspoon or 1 sachet
lemon zest (optional)
Quantity
1/2 teaspoon
finely grated
plain flour
Quantity
250g
egg
Quantity
1
beaten and divided
blanched almonds (optional)
Quantity
20g
| Ingredient | Quantity |
|---|---|
| unsalted roombotersoftened, plus extra for the tin | 250g |
| fine caster sugar | 200g |
| fine sea salt | 1/4 teaspoon |
| vanilla extract or vanilla sugar | 1 teaspoon or 1 sachet |
| lemon zest (optional)finely grated | 1/2 teaspoon |
| plain flour | 250g |
| eggbeaten and divided | 1 |
| blanched almonds (optional) | 20g |
Equipment Needed
- •24cm round boterkoek tin or shallow tart tin
- •Electric hand mixer or wooden spoon
- •Fork for scoring
- •Baking paper
Instructions
- 1
Prepare the tin
Heat the oven to 175C. Butter a 24cm round boterkoek tin or a shallow tart tin and line the base with baking paper. A low tin matters here; boterkoek should bake as a flat golden round, not climb like cake pretending to be better bred.
- 2
Cream the butter
Beat the softened roomboter with the sugar, salt, vanilla, and lemon zest if using, until pale and soft, about two minutes. Add half the beaten egg and beat again. The mixture should look creamy, not airy; this is a dense koek, and too much enthusiasm with the mixer gives it ideas above its station.
The butter must be soft enough to take a fingerprint but not shiny or melting. If it melts before baking, the finished koek turns greasy instead of smeuig, that dense moist texture the Dutch mean when a crumb still has life in it. - 3
Make the dough
Add the flour and mix just until no dry streaks remain. The dough will be thick, soft, and slightly sticky. Do not knead it; flour worked too hard makes a tough boterkoek, and toughness is not a virtue at the coffee table.
- 4
Press and score
Press the dough evenly into the prepared tin with damp fingers or the back of a spoon, smoothing it right to the edges. Brush the top with the remaining beaten egg, then drag a fork lightly across the surface in a diamond pattern. Press almonds around the edge if you like. The scoring is not decoration only; those shallow ridges brown first and give each slice its little golden map.
- 5
Bake gently
Bake for 22 to 27 minutes, until the top is deep golden at the edges and set in the centre, but still tender when pressed lightly. Do not wait for it to feel firm in the oven. It sets as it cools, and if you bake until certainty, you have already gone too far.
- 6
Cool before slicing
Let the boterkoek cool in the tin for at least one hour before lifting it out and cutting it into narrow wedges. This is the hardest instruction in the recipe, because warm butter and sugar smell persuasive. Resist. Cut too early and it smears; wait, and it slices cleanly while staying soft within.
Chef Tips
- •Use real roomboter, not spreadable butter and not margarine. The recipe has so few ingredients that the butter is not part of the flavour, it is the flavour.
- •A dedicated boterkoek tin with a loose base is useful, but a shallow 24cm tart tin works well. Avoid a deep cake pan, which traps too much softness in the middle before the top browns properly.
- •Lemon zest is not modern mischief. Many Dutch home recipes add a whisper of citrus to keep all that butter from tasting flat. Use only the yellow zest, not the bitter white pith.
- •Serve in small wedges with strong coffee. Boterkoek is rich in the old Dutch manner, generous but not theatrical, and a small slice tells the truth better than a heroic one.
Advance Preparation
- •Bake up to two days ahead and keep well wrapped at room temperature; the texture settles beautifully after a night.
- •Freeze the whole cooled koek or individual wedges for up to two months. Thaw wrapped at room temperature so the surface stays tender.
- •The dough can be pressed into the tin, covered, and refrigerated for up to 24 hours before baking. Brush with egg and score just before it goes into the oven.
Frequently Asked Questions
Nutrition Information
1 serving (about 60g)
Calories
305 calories
Total Fat
18 g
Saturated Fat
11 g
Trans Fat
1 g
Unsaturated Fat
6 g
Cholesterol
60 mg
Sodium
60 mg
Total Carbohydrates
33 g
Dietary Fiber
1 g
Sugars
17 g
Protein
3 g
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