Bone Marrow Recipe

Preheat and prepare bones

Preheat oven to 220°C (425°F). Rinse marrow bones briefly under cold water and pat dry with paper towels. If bones are whole, ask the butcher to cut them lengthwise or into 2–3 inch segments to expose the marrow. Arrange bones cut-side up on a rimmed baking sheet lined with foil or parchment. Scatter thyme sprigs and smashed garlic cloves between the bones.

Season and roast

Sprinkle the exposed marrow lightly with coarse sea salt and freshly ground black pepper. Drizzle a little olive oil over the bones. Roast in the preheated oven for 12–18 minutes until the marrow is soft and just beginning to separate from the bone but not melted away. The exterior should be lightly caramelized. Cooking time depends on bone thickness—check at 12 minutes and add time as needed.

Rest

Remove bones from the oven and let rest 2–3 minutes. While warm, you can squeeze a little lemon over each bone if desired. Keep warm while you finish the jus and horseradish.

Sweat shallot and reduce wine

In a small saucepan over medium heat, warm 1 tbs olive oil. Add the finely minced shallot and a pinch of salt; cook, stirring, until softened and translucent, about 2–3 minutes. Pour in the red wine and bring to a simmer. Reduce the wine until syrupy and most of the alcohol aroma has cooked off, about 3–5 minutes.

Add stock and reduce

Add the beef demi-glace or strong beef stock to the reduced wine. Bring to a gentle simmer and reduce until the liquid is glossy and slightly thickened, about 10–12 minutes, resulting in roughly 200–250 ml of concentrated jus. Taste and season with 1/2 tsp coarse sea salt and 1/4 tsp freshly ground black pepper.

Finish with butter and herbs

Off the heat, swirl in the cold cubed butter one piece at a time to emulsify the sauce to a silky texture. Stir in the chopped parsley. Keep warm (do not boil) until ready to serve.

Prepare horseradish

If using fresh horseradish root, peel and finely grate it on the small holes of a box grater. If using prepared horseradish, measure equivalent amount. Grating releases strong fumes—work quickly and ventilate kitchen if sensitive.

Combine ingredients

In a small bowl, combine grated horseradish with sour cream, creme fraiche (or yogurt), apple cider vinegar, caster sugar, 1/4 tsp coarse sea salt and 1/8 tsp freshly ground black pepper. Stir until smooth and taste—adjust vinegar or sugar to balance heat and acidity. Fold in chopped chives if using. Chill briefly to let flavors marry, or serve immediately if you prefer more horseradish heat.

Toast the sourdough or baguette slices until golden and crisp. Spread a little of the horseradish condiment on each toast, spoon marrow directly out of the roasted bone onto the toast (or serve bones on the plate and a small spoon for guests). Drizzle a little warm jus over the marrow and around the plate. Garnish with microgreens or parsley and serve with lemon wedges on the side.