EuropeanEasy · Hot
Sharp Mustard and Parmesan Toasts
Crisp toast crowned with a sharp mustard and Parmesan butter that melts into golden, savory deliciousness. Breakfast, not brunch. Served immediately.
Prep
10 min
Cook
8 min
Total
18 min
Method
1
In a small bowl, combine 60g softened butter, 2 tbsp sharp mustard, 60g finely grated Parmesan, a pinch of salt, and a few grinds of black pepper. Mix vigorously until fully combined and smooth.
2
Preheat your broiler to high. Brush both sides of each bread slice lightly with olive oil. Arrange on a baking sheet and broil 2-3 minutes per side until golden and crisp, flipping once.
3
4
Serve immediately — these do not wait for you, and neither does breakfast.
D
Nutri-Score
Needs balance
A–E · lower is better · score 15
Calories
260
per serving
High in saturated fat · 12gCalorie-dense · 260 kcalSource of protein · 8gHigh in fibre · 4gLow sugar · 1g
Protein
8g
Carbs
11g
Fat
21g
Sat. fat
12g
Fiber
4g
Sugar
1g
Sodium
318mg
DiabetesLow SodiumHigh CalciumHigh ProteinLow Carb
Nutri-Score is a general nutritional-balance guide, not medical or dietary advice.
E
Environmental impact
Very high impact
A–E · lower is better · includes estimates
kg CO2e
0.6
per serving
ECarbonAEU all-round· carbon sets the grade
Water
0.1m³
Land
15Pt
Runoff
0.02g P
Parmesan, finely grated drives 63% of this recipe’s estimated footprint.
Carbon from Poore & Nemecek 2018; water, land & runoff from Agribalyse — modelled averages for comparing recipes, not a measurement of your groceries.
Flavor Profile
8
Umami
3
Sweet
6
Salty
4
Sour
2
Bitter
5
Spicy
Textures
CreamyCrispyGooeyTender
Aromas
HerbalSavorySmokyTangy
Kitchen Equipment
Techniques
Safety & Storage
Cooking Temperature
Broiler reaches high temperatures quickly. Watch the toasts closely during the final 1-2 minute broil to prevent burning the butter and cheese toppings.
Handling
Butter melts rapidly under the broiler and can cause splattering. Use caution when spreading hot butter and when returning buttered toasts to the broiler.
Allergen Warning
This dish contains dairy (butter, Parmesan), mustard, and gluten (bread). People with allergies to these ingredients should avoid this recipe.
Storage
Compound butter can be made ahead and refrigerated for up to 1 week in an airtight container. Bring to room temperature before spreading on hot toasts.
Shelf Life
These toasts are designed for immediate service. Leftovers will lose crispness as the bread absorbs moisture from the melted butter.
Cross Contamination
Use separate utensils and cutting boards if preparing this dish alongside allergen-free meals. Clean all surfaces thoroughly between uses.
Pro Tips
Technique
Your butter must be genuinely soft before you start mixing — it should yield when you press it with a finger. Cold butter will refuse to incorporate the mustard and Parmesan evenly, and you'll end up with streaks instead of a proper compound butter.
Substitution
A good whole-grain mustard works beautifully here if you want more texture, though you'll want to reduce it by half a tablespoon so the smaller seeds don't throw off the butter-to-mustard ratio.
From the chef
I developed this because I was tired of seeing toast arrive at the table cold, naked, and waiting for someone to slather it with something pre-packaged. The sharp mustard cuts through the butter like a good argument, the Parmesan melts into those edges where the butter meets the bread, and you eat it standing at the counter with coffee in your other hand. That is breakfast. No velvet ropes required.
TagsQuickEasyVegetarianCheeseButterToastMustardBroiledSharp FlavorBreakfastBrunch Abolitionist
AllergensMilkMustardWheatGluten
Source: generated · June 13, 2026