Fish Fridays: Smashed Brussels Sprouts with Brown Butter Tuna Hollandaise

It’s Fish Fridays and this time, Canadian chef and Marine Stewardship Council ambassador Charlotte Langley is sharing an ocean friendly, lunch or dinner recipe with us. Smashed Brussels sprouts with brown butter tuna hollandaise sounds delicious, and complicated, but this recipe is beginner friendly.

Taking a (slight) cue from a classic tuna tonnato sauce, these smashed Brussels sprouts are crispy and shine served with an unctuous brown butter hollandaise that’s spiked with MSC certified sustainable tinned tuna. It’s a simple dish, using few ingredients, that punches above its weight. This hollandaise is also the perfect way to switch up your eggs benny game.

Now for the recipe for Smashed Brussels sprouts with brown butter tuna hollandaise:

Prep: 10 minutes

Cook Time: 30 minutes

Serving size: 2 as a main course for lunch or dinner or 4 for brunch (if serving on eggs benny)

Experience level: Beginner

Ingredients:

1 cup (227 g) unsalted butter

1 tin (approx. 150 g) of MSC certified sustainable tuna in oil 

4 egg yolks

2 tbsp (30 ml) lemon juice

1 tbsp (15 ml) Dijon mustard 

Dash of Worcestershire sauce

2 heaping cups (250 g) Brussel sprouts, whole washed

2 tbsp (30 ml) olive oil

Salt and pepper to taste

How-to:

1. Pre-heat oven to 400°F
2. In a medium sized pot of boiling water, add Brussel sprouts and let simmer until tender, approximately 10 minutes.
3. When Brussel sprouts are tender, drain and flatten each one with the bottom of a mug until relatively thin.
4. On a parchment-lined cookie sheet, arrange the Brussel sprouts giving each one room, drizzle with olive oil and bake until desired crispiness, approximately 10-15 minutes.
5. In a small saucepan on medium heat, melt the butter and continue to cook until the milk solids stop bubbling and start browning. HINT! You’re looking for the color of light maple syrup. Remove from heat and keep warm.
6. In a blender, add egg yolks, Dijon, lemon juice and a pinch of salt. 
7. Start the blender and slowly drizzle in the warm brown butter. The hollandaise will start to thicken quickly, so stop the blender before it gets too thick. Season to taste with Worcestershire sauce.
8. Remove tuna from the tin reserving the oil. Mash lightly with a fork leaving some slightly larger chunks. Fold into the warm Hollandaise. 
9. Remove sprouts from oven and divide onto 2 plates. Drizzle with the olive oil from the tinned tuna if desired. 
10. Top liberally with the warm tuna Hollandaise or serve on the side as a dip.